21905100

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:110

約数の個数: 288

約数和(自身を含む): 86105600

約数和(自身を除く): 64200500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 25, 27, 28, 30, 35, 36, 38, 42, 45, 50, 54, 57, 60, 61, 63, 70, 75, 76, 84, 90, 95, 100, 105, 108, 114, 122, 126, 133, 135, 140, 150, 171, 175, 180, 183, 189, 190, 210, 225, 228, 244, 252, 266, 270, 285, 300, 305, 315, 342, 350, 366, 378, 380, 399, 420, 427, 450, 475, 513, 525, 532, 540, 549, 570, 610, 630, 665, 675, 684, 700, 732, 756, 798, 854, 855, 900, 915, 945, 950, 1026, 1050, 1098, 1140, 1159, 1197, 1220, 1260, 1281, 1330, 1350, 1425, 1525, 1575, 1596, 1647, 1708, 1710, 1830, 1890, 1900, 1995, 2052, 2100, 2135, 2196, 2318, 2394, 2562, 2565, 2660, 2700, 2745, 2850, 3050, 3150, 3294, 3325, 3420, 3477, 3591, 3660, 3780, 3843, 3990, 4270, 4275, 4575, 4636, 4725, 4788, 5124, 5130, 5490, 5700, 5795, 5985, 6100, 6300, 6405, 6588, 6650, 6954, 7182, 7686, 7980, 8113, 8235, 8540, 8550, 9150, 9450, 9975, 10260, 10431, 10675, 10980, 11529, 11590, 11970, 12810, 12825, 13300, 13725, 13908, 14364, 15372, 16226, 16470, 17100, 17385, 17955, 18300, 18900, 19215, 19950, 20862, 21350, 23058, 23180, 23940, 24339, 25620, 25650, 27450, 28975, 29925, 31293, 32025, 32452, 32940, 34770, 35910, 38430, 39900, 40565, 41175, 41724, 42700, 46116, 48678, 51300, 52155, 54900, 57645, 57950, 59850, 62586, 64050, 69540, 71820, 73017, 76860, 81130, 82350, 86925, 89775, 96075, 97356, 104310, 115290, 115900, 119700, 121695, 125172, 128100, 146034, 156465, 162260, 164700, 173850, 179550, 192150, 202825, 208620, 219051, 230580, 243390, 260775, 288225, 292068, 312930, 347700, 359100, 365085, 384300, 405650, 438102, 486780, 521550, 576450, 608475, 625860, 730170, 782325, 811300, 876204, 1043100, 1095255, 1152900, 1216950, 1460340, 1564650, 1825425, 2190510, 2433900, 3129300, 3650850, 4381020, 5476275, 7301700, 10952550, 21905100]

約数ペア:

[(1, 21905100), (2, 10952550), (3, 7301700), (4, 5476275), (5, 4381020), (6, 3650850), (7, 3129300), (9, 2433900), (10, 2190510), (12, 1825425), (14, 1564650), (15, 1460340), (18, 1216950), (19, 1152900), (20, 1095255), (21, 1043100), (25, 876204), (27, 811300), (28, 782325), (30, 730170), (35, 625860), (36, 608475), (38, 576450), (42, 521550), (45, 486780), (50, 438102), (54, 405650), (57, 384300), (60, 365085), (61, 359100), (63, 347700), (70, 312930), (75, 292068), (76, 288225), (84, 260775), (90, 243390), (95, 230580), (100, 219051), (105, 208620), (108, 202825), (114, 192150), (122, 179550), (126, 173850), (133, 164700), (135, 162260), (140, 156465), (150, 146034), (171, 128100), (175, 125172), (180, 121695), (183, 119700), (189, 115900), (190, 115290), (210, 104310), (225, 97356), (228, 96075), (244, 89775), (252, 86925), (266, 82350), (270, 81130), (285, 76860), (300, 73017), (305, 71820), (315, 69540), (342, 64050), (350, 62586), (366, 59850), (378, 57950), (380, 57645), (399, 54900), (420, 52155), (427, 51300), (450, 48678), (475, 46116), (513, 42700), (525, 41724), (532, 41175), (540, 40565), (549, 39900), (570, 38430), (610, 35910), (630, 34770), (665, 32940), (675, 32452), (684, 32025), (700, 31293), (732, 29925), (756, 28975), (798, 27450), (854, 25650), (855, 25620), (900, 24339), (915, 23940), (945, 23180), (950, 23058), (1026, 21350), (1050, 20862), (1098, 19950), (1140, 19215), (1159, 18900), (1197, 18300), (1220, 17955), (1260, 17385), (1281, 17100), (1330, 16470), (1350, 16226), (1425, 15372), (1525, 14364), (1575, 13908), (1596, 13725), (1647, 13300), (1708, 12825), (1710, 12810), (1830, 11970), (1890, 11590), (1900, 11529), (1995, 10980), (2052, 10675), (2100, 10431), (2135, 10260), (2196, 9975), (2318, 9450), (2394, 9150), (2562, 8550), (2565, 8540), (2660, 8235), (2700, 8113), (2745, 7980), (2850, 7686), (3050, 7182), (3150, 6954), (3294, 6650), (3325, 6588), (3420, 6405), (3477, 6300), (3591, 6100), (3660, 5985), (3780, 5795), (3843, 5700), (3990, 5490), (4270, 5130), (4275, 5124), (4575, 4788), (4636, 4725)]