21552999

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{3709}}^1$

素因数の和:3874

約数の個数: 16

約数和(自身を含む): 31164000

約数和(自身を除く): 9611001

約数列:

[1, 3, 13, 39, 149, 447, 1937, 3709, 5811, 11127, 48217, 144651, 552641, 1657923, 7184333, 21552999]

約数ペア:

[(1, 21552999), (3, 7184333), (13, 1657923), (39, 552641), (149, 144651), (447, 48217), (1937, 11127), (3709, 5811)]