639104401

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{51157}}^1$

素因数の和:51232

約数の個数: 12

約数和(自身を含む): 711198516

約数和(自身を除く): 72094115

約数列:

[1, 13, 31, 403, 961, 12493, 51157, 665041, 1585867, 20616271, 49161877, 639104401]

約数ペア:

[(1, 639104401), (13, 49161877), (31, 20616271), (403, 1585867), (961, 665041), (12493, 51157)]