21259440296

素因数分解:

$2^3\times {\mathrm{19417}}^1\times {\mathrm{136861}}^1$

素因数の和:156284

約数の個数: 16

約数和(自身を含む): 39863794740

約数和(自身を除く): 18604354444

約数列:

[1, 2, 4, 8, 19417, 38834, 77668, 136861, 155336, 273722, 547444, 1094888, 2657430037, 5314860074, 10629720148, 21259440296]

約数ペア:

[(1, 21259440296), (2, 10629720148), (4, 5314860074), (8, 2657430037), (19417, 1094888), (38834, 547444), (77668, 273722), (136861, 155336)]