20694987

素因数分解:

$3^3\times {\mathrm{131}}^1\times {\mathrm{5851}}^1$

素因数の和:5991

約数の個数: 16

約数和(自身を含む): 30898560

約数和(自身を除く): 10203573

約数列:

[1, 3, 9, 27, 131, 393, 1179, 3537, 5851, 17553, 52659, 157977, 766481, 2299443, 6898329, 20694987]

約数ペア:

[(1, 20694987), (3, 6898329), (9, 2299443), (27, 766481), (131, 157977), (393, 52659), (1179, 17553), (3537, 5851)]