19904547

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{10859}}^1$

素因数の和:10922

約数の個数: 16

約数和(自身を含む): 29191680

約数和(自身を除く): 9287133

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 10859, 32577, 141167, 423501, 510373, 1531119, 6634849, 19904547]

約数ペア:

[(1, 19904547), (3, 6634849), (13, 1531119), (39, 510373), (47, 423501), (141, 141167), (611, 32577), (1833, 10859)]