20689929

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{977}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 32395272

約数和(自身を除く): 11705343

約数列:

[1, 3, 9, 13, 39, 117, 181, 543, 977, 1629, 2353, 2931, 7059, 8793, 12701, 21177, 38103, 114309, 176837, 530511, 1591533, 2298881, 6896643, 20689929]

約数ペア:

[(1, 20689929), (3, 6896643), (9, 2298881), (13, 1591533), (39, 530511), (117, 176837), (181, 114309), (543, 38103), (977, 21177), (1629, 12701), (2353, 8793), (2931, 7059)]