18972819

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{14951}}^1$

素因数の和:15007

約数の個数: 16

約数和(自身を含む): 28707840

約数和(自身を除く): 9735021

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 14951, 44853, 134559, 403677, 702697, 2108091, 6324273, 18972819]

約数ペア:

[(1, 18972819), (3, 6324273), (9, 2108091), (27, 702697), (47, 403677), (141, 134559), (423, 44853), (1269, 14951)]