19687312

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{10889}}^1$

素因数の和:11010

約数の個数: 20

約数和(自身を含む): 38485260

約数和(自身を除く): 18797948

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 10889, 21778, 43556, 87112, 174224, 1230457, 2460914, 4921828, 9843656, 19687312]

約数ペア:

[(1, 19687312), (2, 9843656), (4, 4921828), (8, 2460914), (16, 1230457), (113, 174224), (226, 87112), (452, 43556), (904, 21778), (1808, 10889)]