20397716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4549}}^1$

素因数の和:4631

約数の個数: 24

約数和(自身を含む): 38220000

約数和(自身を除く): 17822284

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4484, 4549, 9098, 18196, 86431, 172862, 268391, 345724, 536782, 1073564, 5099429, 10198858, 20397716]

約数ペア:

[(1, 20397716), (2, 10198858), (4, 5099429), (19, 1073564), (38, 536782), (59, 345724), (76, 268391), (118, 172862), (236, 86431), (1121, 18196), (2242, 9098), (4484, 4549)]