211520121657

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{417199451}}^1$

素因数の和:417199480

約数の個数: 12

約数和(自身を含む): 305389998864

約数和(自身を除く): 93869877207

約数列:

[1, 3, 13, 39, 169, 507, 417199451, 1251598353, 5423592863, 16270778589, 70506707219, 211520121657]

約数ペア:

[(1, 211520121657), (3, 70506707219), (13, 16270778589), (39, 5423592863), (169, 1251598353), (507, 417199451)]