668839367

素因数分解:

$7^4\times {\mathrm{163}}^1\times {\mathrm{1709}}^1$

素因数の和:1900

約数の個数: 20

約数和(自身を含む): 785512440

約数和(自身を除く): 116673073

約数列:

[1, 7, 49, 163, 343, 1141, 1709, 2401, 7987, 11963, 55909, 83741, 278567, 391363, 586187, 1949969, 4103309, 13649783, 95548481, 668839367]

約数ペア:

[(1, 668839367), (7, 95548481), (49, 13649783), (163, 4103309), (343, 1949969), (1141, 586187), (1709, 391363), (2401, 278567), (7987, 83741), (11963, 55909)]