661978239

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{9967}}^1$

素因数の和:10127

約数の個数: 24

約数和(自身を含む): 963148032

約数和(自身を除く): 301169793

約数列:

[1, 3, 13, 39, 131, 169, 393, 507, 1703, 5109, 9967, 22139, 29901, 66417, 129571, 388713, 1305677, 1684423, 3917031, 5053269, 16973801, 50921403, 220659413, 661978239]

約数ペア:

[(1, 661978239), (3, 220659413), (13, 50921403), (39, 16973801), (131, 5053269), (169, 3917031), (393, 1684423), (507, 1305677), (1703, 388713), (5109, 129571), (9967, 66417), (22139, 29901)]