20961447

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{10141}}^1$

素因数の和:10210

約数の個数: 16

約数和(自身を含む): 30669408

約数和(自身を除く): 9707961

約数列:

[1, 3, 13, 39, 53, 159, 689, 2067, 10141, 30423, 131833, 395499, 537473, 1612419, 6987149, 20961447]

約数ペア:

[(1, 20961447), (3, 6987149), (13, 1612419), (39, 537473), (53, 395499), (159, 131833), (689, 30423), (2067, 10141)]