204420671

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 261233280

約数和(自身を除く): 56812609

約数列:

[1, 7, 13, 37, 91, 109, 259, 481, 557, 763, 1417, 3367, 3899, 4033, 7241, 9919, 20609, 28231, 50687, 52429, 60713, 144263, 267917, 367003, 424991, 789269, 1875419, 2246381, 5524883, 15724667, 29202953, 204420671]

約数ペア:

[(1, 204420671), (7, 29202953), (13, 15724667), (37, 5524883), (91, 2246381), (109, 1875419), (259, 789269), (481, 424991), (557, 367003), (763, 267917), (1417, 144263), (3367, 60713), (3899, 52429), (4033, 50687), (7241, 28231), (9919, 20609)]