21329288

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{156833}}^1$

素因数の和:156856

約数の個数: 16

約数和(自身を含む): 42345180

約数和(自身を除く): 21015892

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 156833, 313666, 627332, 1254664, 2666161, 5332322, 10664644, 21329288]

約数ペア:

[(1, 21329288), (2, 10664644), (4, 5332322), (8, 2666161), (17, 1254664), (34, 627332), (68, 313666), (136, 156833)]