20197618

素因数分解:

$2^1\times 7^1\times {\mathrm{677}}^1\times {\mathrm{2131}}^1$

素因数の和:2817

約数の個数: 16

約数和(自身を含む): 34691904

約数和(自身を除く): 14494286

約数列:

[1, 2, 7, 14, 677, 1354, 2131, 4262, 4739, 9478, 14917, 29834, 1442687, 2885374, 10098809, 20197618]

約数ペア:

[(1, 20197618), (2, 10098809), (7, 2885374), (14, 1442687), (677, 29834), (1354, 14917), (2131, 9478), (4262, 4739)]