204420307

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{320911}}^1$

素因数の和:320938

約数の個数: 12

約数和(自身を含む): 256087776

約数和(自身を除く): 51667469

約数列:

[1, 7, 13, 49, 91, 637, 320911, 2246377, 4171843, 15724639, 29202901, 204420307]

約数ペア:

[(1, 204420307), (7, 29202901), (13, 15724639), (49, 4171843), (91, 2246377), (637, 320911)]