251172171

素因数分解:

$3^4\times {\mathrm{313}}^1\times {\mathrm{9907}}^1$

素因数の和:10232

約数の個数: 20

約数和(自身を含む): 376444552

約数和(自身を除く): 125272381

約数列:

[1, 3, 9, 27, 81, 313, 939, 2817, 8451, 9907, 25353, 29721, 89163, 267489, 802467, 3100891, 9302673, 27908019, 83724057, 251172171]

約数ペア:

[(1, 251172171), (3, 83724057), (9, 27908019), (27, 9302673), (81, 3100891), (313, 802467), (939, 267489), (2817, 89163), (8451, 29721), (9907, 25353)]