21519268

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{47609}}^1$

素因数の和:47726

約数の個数: 12

約数和(自身を含む): 37992780

約数和(自身を除く): 16473512

約数列:

[1, 2, 4, 113, 226, 452, 47609, 95218, 190436, 5379817, 10759634, 21519268]

約数ペア:

[(1, 21519268), (2, 10759634), (4, 5379817), (113, 190436), (226, 95218), (452, 47609)]