21529154

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1801}}^1$

素因数の和:1985

約数の個数: 16

約数和(自身を含む): 33300960

約数和(自身を除く): 11771806

約数列:

[1, 2, 43, 86, 139, 278, 1801, 3602, 5977, 11954, 77443, 154886, 250339, 500678, 10764577, 21529154]

約数ペア:

[(1, 21529154), (2, 10764577), (43, 500678), (86, 250339), (139, 154886), (278, 77443), (1801, 11954), (3602, 5977)]