21720864

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:398

約数の個数: 96

約数和(自身を含む): 63334656

約数和(自身を除く): 41613792

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 67, 88, 96, 132, 134, 176, 201, 264, 268, 307, 352, 402, 528, 536, 614, 737, 804, 921, 1056, 1072, 1228, 1474, 1608, 1842, 2144, 2211, 2456, 2948, 3216, 3377, 3684, 4422, 4912, 5896, 6432, 6754, 7368, 8844, 9824, 10131, 11792, 13508, 14736, 17688, 20262, 20569, 23584, 27016, 29472, 35376, 40524, 41138, 54032, 61707, 70752, 81048, 82276, 108064, 123414, 162096, 164552, 226259, 246828, 324192, 329104, 452518, 493656, 658208, 678777, 905036, 987312, 1357554, 1810072, 1974624, 2715108, 3620144, 5430216, 7240288, 10860432, 21720864]

約数ペア:

[(1, 21720864), (2, 10860432), (3, 7240288), (4, 5430216), (6, 3620144), (8, 2715108), (11, 1974624), (12, 1810072), (16, 1357554), (22, 987312), (24, 905036), (32, 678777), (33, 658208), (44, 493656), (48, 452518), (66, 329104), (67, 324192), (88, 246828), (96, 226259), (132, 164552), (134, 162096), (176, 123414), (201, 108064), (264, 82276), (268, 81048), (307, 70752), (352, 61707), (402, 54032), (528, 41138), (536, 40524), (614, 35376), (737, 29472), (804, 27016), (921, 23584), (1056, 20569), (1072, 20262), (1228, 17688), (1474, 14736), (1608, 13508), (1842, 11792), (2144, 10131), (2211, 9824), (2456, 8844), (2948, 7368), (3216, 6754), (3377, 6432), (3684, 5896), (4422, 4912)]