20786958717

素因数分解:

$3^1\times 7^1\times {\mathrm{32843}}^1\times {\mathrm{30139}}^1$

素因数の和:62992

約数の個数: 16

約数和(自身を含む): 31677381120

約数和(自身を除く): 10890422403

約数列:

[1, 3, 7, 21, 30139, 32843, 90417, 98529, 210973, 229901, 632919, 689703, 989855177, 2969565531, 6928986239, 20786958717]

約数ペア:

[(1, 20786958717), (3, 6928986239), (7, 2969565531), (21, 989855177), (30139, 689703), (32843, 632919), (90417, 229901), (98529, 210973)]