20920887

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1097}}^1$

素因数の和:1279

約数の個数: 24

約数和(自身を含む): 32773104

約数和(自身を除く): 11852217

約数列:

[1, 3, 9, 13, 39, 117, 163, 489, 1097, 1467, 2119, 3291, 6357, 9873, 14261, 19071, 42783, 128349, 178811, 536433, 1609299, 2324543, 6973629, 20920887]

約数ペア:

[(1, 20920887), (3, 6973629), (9, 2324543), (13, 1609299), (39, 536433), (117, 178811), (163, 128349), (489, 42783), (1097, 19071), (1467, 14261), (2119, 9873), (3291, 6357)]