21607560

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:64

約数の個数: 256

約数和(自身を含む): 82656000

約数和(自身を除く): 61048440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 27, 30, 36, 38, 39, 40, 45, 52, 54, 57, 60, 65, 72, 76, 78, 81, 90, 95, 104, 108, 114, 117, 120, 130, 135, 152, 156, 162, 171, 180, 190, 195, 216, 228, 234, 243, 247, 260, 270, 285, 312, 324, 342, 351, 360, 380, 390, 405, 456, 468, 486, 494, 513, 520, 540, 570, 585, 648, 684, 702, 729, 741, 760, 780, 810, 855, 936, 972, 988, 1026, 1053, 1080, 1140, 1170, 1215, 1235, 1368, 1404, 1458, 1482, 1539, 1560, 1620, 1710, 1755, 1944, 1976, 2052, 2106, 2187, 2223, 2280, 2340, 2430, 2470, 2565, 2808, 2916, 2964, 3078, 3159, 3240, 3420, 3510, 3645, 3705, 4104, 4212, 4374, 4446, 4617, 4680, 4860, 4940, 5130, 5265, 5832, 5928, 6156, 6318, 6669, 6840, 7020, 7290, 7410, 7695, 8424, 8748, 8892, 9234, 9477, 9720, 9880, 10260, 10530, 10935, 11115, 12312, 12636, 13338, 13851, 14040, 14580, 14820, 15390, 15795, 17496, 17784, 18468, 18954, 20007, 20520, 21060, 21870, 22230, 23085, 25272, 26676, 27702, 28431, 29160, 29640, 30780, 31590, 33345, 36936, 37908, 40014, 41553, 42120, 43740, 44460, 46170, 47385, 53352, 55404, 56862, 60021, 61560, 63180, 66690, 69255, 75816, 80028, 83106, 87480, 88920, 92340, 94770, 100035, 110808, 113724, 120042, 126360, 133380, 138510, 142155, 160056, 166212, 180063, 184680, 189540, 200070, 207765, 227448, 240084, 266760, 277020, 284310, 300105, 332424, 360126, 379080, 400140, 415530, 480168, 540189, 554040, 568620, 600210, 720252, 800280, 831060, 900315, 1080378, 1137240, 1200420, 1440504, 1662120, 1800630, 2160756, 2400840, 2700945, 3601260, 4321512, 5401890, 7202520, 10803780, 21607560]

約数ペア:

[(1, 21607560), (2, 10803780), (3, 7202520), (4, 5401890), (5, 4321512), (6, 3601260), (8, 2700945), (9, 2400840), (10, 2160756), (12, 1800630), (13, 1662120), (15, 1440504), (18, 1200420), (19, 1137240), (20, 1080378), (24, 900315), (26, 831060), (27, 800280), (30, 720252), (36, 600210), (38, 568620), (39, 554040), (40, 540189), (45, 480168), (52, 415530), (54, 400140), (57, 379080), (60, 360126), (65, 332424), (72, 300105), (76, 284310), (78, 277020), (81, 266760), (90, 240084), (95, 227448), (104, 207765), (108, 200070), (114, 189540), (117, 184680), (120, 180063), (130, 166212), (135, 160056), (152, 142155), (156, 138510), (162, 133380), (171, 126360), (180, 120042), (190, 113724), (195, 110808), (216, 100035), (228, 94770), (234, 92340), (243, 88920), (247, 87480), (260, 83106), (270, 80028), (285, 75816), (312, 69255), (324, 66690), (342, 63180), (351, 61560), (360, 60021), (380, 56862), (390, 55404), (405, 53352), (456, 47385), (468, 46170), (486, 44460), (494, 43740), (513, 42120), (520, 41553), (540, 40014), (570, 37908), (585, 36936), (648, 33345), (684, 31590), (702, 30780), (729, 29640), (741, 29160), (760, 28431), (780, 27702), (810, 26676), (855, 25272), (936, 23085), (972, 22230), (988, 21870), (1026, 21060), (1053, 20520), (1080, 20007), (1140, 18954), (1170, 18468), (1215, 17784), (1235, 17496), (1368, 15795), (1404, 15390), (1458, 14820), (1482, 14580), (1539, 14040), (1560, 13851), (1620, 13338), (1710, 12636), (1755, 12312), (1944, 11115), (1976, 10935), (2052, 10530), (2106, 10260), (2187, 9880), (2223, 9720), (2280, 9477), (2340, 9234), (2430, 8892), (2470, 8748), (2565, 8424), (2808, 7695), (2916, 7410), (2964, 7290), (3078, 7020), (3159, 6840), (3240, 6669), (3420, 6318), (3510, 6156), (3645, 5928), (3705, 5832), (4104, 5265), (4212, 5130), (4374, 4940), (4446, 4860), (4617, 4680)]