678931

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:234

約数の個数: 12

約数和(自身を含む): 774592

約数和(自身を除く): 95661

約数列:

[1, 11, 31, 121, 181, 341, 1991, 3751, 5611, 21901, 61721, 678931]

約数ペア:

[(1, 678931), (11, 61721), (31, 21901), (121, 5611), (181, 3751), (341, 1991)]