205057307

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{321911}}^1$

素因数の和:321938

約数の個数: 12

約数和(自身を含む): 256885776

約数和(自身を除く): 51828469

約数列:

[1, 7, 13, 49, 91, 637, 321911, 2253377, 4184843, 15773639, 29293901, 205057307]

約数ペア:

[(1, 205057307), (7, 29293901), (13, 15773639), (49, 4184843), (91, 2253377), (637, 321911)]