668399251

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131497}}^1$

素因数の和:131550

約数の個数: 16

約数和(自身を含む): 795299904

約数和(自身を除く): 126900653

約数列:

[1, 13, 17, 23, 221, 299, 391, 5083, 131497, 1709461, 2235449, 3024431, 29060837, 39317603, 51415327, 668399251]

約数ペア:

[(1, 668399251), (13, 51415327), (17, 39317603), (23, 29060837), (221, 3024431), (299, 2235449), (391, 1709461), (5083, 131497)]