20120803997

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{67217}}^1$

素因数の和:67421

約数の個数: 24

約数和(自身を含む): 24137983800

約数和(自身を除く): 4017179803

約数列:

[1, 7, 41, 49, 149, 287, 1043, 2009, 6109, 7301, 42763, 67217, 299341, 470519, 2755897, 3293633, 10015333, 19291279, 70107331, 135038953, 410628653, 490751317, 2874400571, 20120803997]

約数ペア:

[(1, 20120803997), (7, 2874400571), (41, 490751317), (49, 410628653), (149, 135038953), (287, 70107331), (1043, 19291279), (2009, 10015333), (6109, 3293633), (7301, 2755897), (42763, 470519), (67217, 299341)]