21421968

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 59162880

約数和(自身を除く): 37740912

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 83, 114, 152, 166, 228, 249, 283, 304, 332, 456, 498, 566, 664, 849, 912, 996, 1132, 1328, 1577, 1698, 1992, 2264, 3154, 3396, 3984, 4528, 4731, 5377, 6308, 6792, 9462, 10754, 12616, 13584, 16131, 18924, 21508, 23489, 25232, 32262, 37848, 43016, 46978, 64524, 70467, 75696, 86032, 93956, 129048, 140934, 187912, 258096, 281868, 375824, 446291, 563736, 892582, 1127472, 1338873, 1785164, 2677746, 3570328, 5355492, 7140656, 10710984, 21421968]

約数ペア:

[(1, 21421968), (2, 10710984), (3, 7140656), (4, 5355492), (6, 3570328), (8, 2677746), (12, 1785164), (16, 1338873), (19, 1127472), (24, 892582), (38, 563736), (48, 446291), (57, 375824), (76, 281868), (83, 258096), (114, 187912), (152, 140934), (166, 129048), (228, 93956), (249, 86032), (283, 75696), (304, 70467), (332, 64524), (456, 46978), (498, 43016), (566, 37848), (664, 32262), (849, 25232), (912, 23489), (996, 21508), (1132, 18924), (1328, 16131), (1577, 13584), (1698, 12616), (1992, 10754), (2264, 9462), (3154, 6792), (3396, 6308), (3984, 5377), (4528, 4731)]