19538674

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{1049}}^1$

素因数の和:1257

約数の個数: 16

約数和(自身を含む): 29988000

約数和(自身を除く): 10449326

約数列:

[1, 2, 67, 134, 139, 278, 1049, 2098, 9313, 18626, 70283, 140566, 145811, 291622, 9769337, 19538674]

約数ペア:

[(1, 19538674), (2, 9769337), (67, 291622), (134, 145811), (139, 140566), (278, 70283), (1049, 18626), (2098, 9313)]