20017481

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{359}}^1$

素因数の和:544

約数の個数: 16

約数和(自身を含む): 22654080

約数和(自身を除く): 2636599

約数列:

[1, 11, 37, 137, 359, 407, 1507, 3949, 5069, 13283, 49183, 55759, 146113, 541013, 1819771, 20017481]

約数ペア:

[(1, 20017481), (11, 1819771), (37, 541013), (137, 146113), (359, 55759), (407, 49183), (1507, 13283), (3949, 5069)]