21162531

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1259}}^1$

素因数の和:1706

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 9319389

約数列:

[1, 3, 13, 39, 431, 1259, 1293, 3777, 5603, 16367, 16809, 49101, 542629, 1627887, 7054177, 21162531]

約数ペア:

[(1, 21162531), (3, 7054177), (13, 1627887), (39, 542629), (431, 49101), (1259, 16809), (1293, 16367), (3777, 5603)]