19043620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13411}}^1$

素因数の和:13491

約数の個数: 24

約数和(自身を含む): 40557888

約数和(自身を除く): 21514268

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13411, 26822, 53644, 67055, 134110, 268220, 952181, 1904362, 3808724, 4760905, 9521810, 19043620]

約数ペア:

[(1, 19043620), (2, 9521810), (4, 4760905), (5, 3808724), (10, 1904362), (20, 952181), (71, 268220), (142, 134110), (284, 67055), (355, 53644), (710, 26822), (1420, 13411)]