20321621

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:404

約数の個数: 16

約数和(自身を含む): 22234560

約数和(自身を除く): 1912939

約数列:

[1, 19, 37, 137, 211, 703, 2603, 4009, 5069, 7807, 28907, 96311, 148333, 549233, 1069559, 20321621]

約数ペア:

[(1, 20321621), (19, 1069559), (37, 549233), (137, 148333), (211, 96311), (703, 28907), (2603, 7807), (4009, 5069)]