31508421

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{2081}}^1$

素因数の和:2201

約数の個数: 24

約数和(自身を含む): 49368384

約数和(自身を除く): 17859963

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 2081, 2163, 5047, 6243, 14567, 15141, 43701, 101969, 214343, 305907, 643029, 1500401, 4501203, 10502807, 31508421]

約数ペア:

[(1, 31508421), (3, 10502807), (7, 4501203), (21, 1500401), (49, 643029), (103, 305907), (147, 214343), (309, 101969), (721, 43701), (2081, 15141), (2163, 14567), (5047, 6243)]