3121317

素因数分解:

$3^2\times {\mathrm{47}}^2\times {\mathrm{157}}^1$

素因数の和:257

約数の個数: 18

約数和(自身を含む): 4635878

約数和(自身を除く): 1514561

約数列:

[1, 3, 9, 47, 141, 157, 423, 471, 1413, 2209, 6627, 7379, 19881, 22137, 66411, 346813, 1040439, 3121317]

約数ペア:

[(1, 3121317), (3, 1040439), (9, 346813), (47, 66411), (141, 22137), (157, 19881), (423, 7379), (471, 6627), (1413, 2209)]