157306317

素因数分解:

$3^1\times 7^4\times {\mathrm{21839}}^1$

素因数の和:21870

約数の個数: 20

約数和(自身を含む): 244695360

約数和(自身を除く): 87389043

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 21839, 65517, 152873, 458619, 1070111, 3210333, 7490777, 22472331, 52435439, 157306317]

約数ペア:

[(1, 157306317), (3, 52435439), (7, 22472331), (21, 7490777), (49, 3210333), (147, 1070111), (343, 458619), (1029, 152873), (2401, 65517), (7203, 21839)]