20521592

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4027}}^1$

素因数の和:4060

約数の個数: 48

約数和(自身を含む): 48215160

約数和(自身を除く): 27693568

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4027, 5096, 8054, 16108, 28189, 32216, 52351, 56378, 104702, 112756, 197323, 209404, 225512, 366457, 394646, 418808, 732914, 789292, 1465828, 1578584, 2565199, 2931656, 5130398, 10260796, 20521592]

約数ペア:

[(1, 20521592), (2, 10260796), (4, 5130398), (7, 2931656), (8, 2565199), (13, 1578584), (14, 1465828), (26, 789292), (28, 732914), (49, 418808), (52, 394646), (56, 366457), (91, 225512), (98, 209404), (104, 197323), (182, 112756), (196, 104702), (364, 56378), (392, 52351), (637, 32216), (728, 28189), (1274, 16108), (2548, 8054), (4027, 5096)]