19723472

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{10909}}^1$

素因数の和:11030

約数の個数: 20

約数和(自身を含む): 38555940

約数和(自身を除く): 18832468

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 10909, 21818, 43636, 87272, 174544, 1232717, 2465434, 4930868, 9861736, 19723472]

約数ペア:

[(1, 19723472), (2, 9861736), (4, 4930868), (8, 2465434), (16, 1232717), (113, 174544), (226, 87272), (452, 43636), (904, 21818), (1808, 10909)]