20888504

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4099}}^1$

素因数の和:4132

約数の個数: 48

約数和(自身を含む): 49077000

約数和(自身を除く): 28188496

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, 4099, 5096, 8198, 16396, 28693, 32792, 53287, 57386, 106574, 114772, 200851, 213148, 229544, 373009, 401702, 426296, 746018, 803404, 1492036, 1606808, 2611063, 2984072, 5222126, 10444252, 20888504]

約数ペア:

[(1, 20888504), (2, 10444252), (4, 5222126), (7, 2984072), (8, 2611063), (13, 1606808), (14, 1492036), (26, 803404), (28, 746018), (49, 426296), (52, 401702), (56, 373009), (91, 229544), (98, 213148), (104, 200851), (182, 114772), (196, 106574), (364, 57386), (392, 53287), (637, 32792), (728, 28693), (1274, 16396), (2548, 8198), (4099, 5096)]