21318570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:189

約数の個数: 192

約数和(自身を含む): 72334080

約数和(自身を除く): 51015510

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 19, 21, 26, 30, 35, 38, 39, 42, 45, 57, 63, 65, 70, 78, 90, 91, 95, 105, 114, 117, 126, 130, 133, 137, 171, 182, 190, 195, 210, 234, 247, 266, 273, 274, 285, 315, 342, 390, 399, 411, 455, 494, 546, 570, 585, 630, 665, 685, 741, 798, 819, 822, 855, 910, 959, 1170, 1197, 1233, 1235, 1330, 1365, 1370, 1482, 1638, 1710, 1729, 1781, 1918, 1995, 2055, 2223, 2394, 2466, 2470, 2603, 2730, 2877, 3458, 3562, 3705, 3990, 4095, 4110, 4446, 4795, 5187, 5206, 5343, 5754, 5985, 6165, 7410, 7809, 8190, 8631, 8645, 8905, 9590, 10374, 10686, 11115, 11970, 12330, 12467, 13015, 14385, 15561, 15618, 16029, 17262, 17290, 17810, 18221, 22230, 23427, 24934, 25935, 26030, 26715, 28770, 31122, 32058, 33839, 36442, 37401, 39045, 43155, 46854, 51870, 53430, 54663, 62335, 67678, 74802, 77805, 78090, 80145, 86310, 91105, 101517, 109326, 112203, 117135, 124670, 155610, 160290, 163989, 169195, 182210, 187005, 203034, 224406, 234270, 236873, 273315, 304551, 327978, 338390, 374010, 473746, 507585, 546630, 561015, 609102, 710619, 819945, 1015170, 1122030, 1184365, 1421238, 1522755, 1639890, 2131857, 2368730, 3045510, 3553095, 4263714, 7106190, 10659285, 21318570]

約数ペア:

[(1, 21318570), (2, 10659285), (3, 7106190), (5, 4263714), (6, 3553095), (7, 3045510), (9, 2368730), (10, 2131857), (13, 1639890), (14, 1522755), (15, 1421238), (18, 1184365), (19, 1122030), (21, 1015170), (26, 819945), (30, 710619), (35, 609102), (38, 561015), (39, 546630), (42, 507585), (45, 473746), (57, 374010), (63, 338390), (65, 327978), (70, 304551), (78, 273315), (90, 236873), (91, 234270), (95, 224406), (105, 203034), (114, 187005), (117, 182210), (126, 169195), (130, 163989), (133, 160290), (137, 155610), (171, 124670), (182, 117135), (190, 112203), (195, 109326), (210, 101517), (234, 91105), (247, 86310), (266, 80145), (273, 78090), (274, 77805), (285, 74802), (315, 67678), (342, 62335), (390, 54663), (399, 53430), (411, 51870), (455, 46854), (494, 43155), (546, 39045), (570, 37401), (585, 36442), (630, 33839), (665, 32058), (685, 31122), (741, 28770), (798, 26715), (819, 26030), (822, 25935), (855, 24934), (910, 23427), (959, 22230), (1170, 18221), (1197, 17810), (1233, 17290), (1235, 17262), (1330, 16029), (1365, 15618), (1370, 15561), (1482, 14385), (1638, 13015), (1710, 12467), (1729, 12330), (1781, 11970), (1918, 11115), (1995, 10686), (2055, 10374), (2223, 9590), (2394, 8905), (2466, 8645), (2470, 8631), (2603, 8190), (2730, 7809), (2877, 7410), (3458, 6165), (3562, 5985), (3705, 5754), (3990, 5343), (4095, 5206), (4110, 5187), (4446, 4795)]