19845848

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2069}}^1$

素因数の和:2195

約数の個数: 32

約数和(自身を含む): 40986000

約数和(自身を除く): 21140152

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 109, 218, 436, 872, 1199, 2069, 2398, 4138, 4796, 8276, 9592, 16552, 22759, 45518, 91036, 182072, 225521, 451042, 902084, 1804168, 2480731, 4961462, 9922924, 19845848]

約数ペア:

[(1, 19845848), (2, 9922924), (4, 4961462), (8, 2480731), (11, 1804168), (22, 902084), (44, 451042), (88, 225521), (109, 182072), (218, 91036), (436, 45518), (872, 22759), (1199, 16552), (2069, 9592), (2398, 8276), (4138, 4796)]