20751549

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10859}}^1$

素因数の和:10889

約数の個数: 24

約数和(自身を含む): 34665120

約数和(自身を除く): 13913571

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10859, 32577, 76013, 141167, 228039, 423501, 532091, 988169, 1596273, 2964507, 6917183, 20751549]

約数ペア:

[(1, 20751549), (3, 6917183), (7, 2964507), (13, 1596273), (21, 988169), (39, 532091), (49, 423501), (91, 228039), (147, 141167), (273, 76013), (637, 32577), (1911, 10859)]