20118898

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{4457}}^1$

素因数の和:4557

約数の個数: 16

約数和(自身を含む): 31509144

約数和(自身を除く): 11390246

約数列:

[1, 2, 37, 61, 74, 122, 2257, 4457, 4514, 8914, 164909, 271877, 329818, 543754, 10059449, 20118898]

約数ペア:

[(1, 20118898), (2, 10059449), (37, 543754), (61, 329818), (74, 271877), (122, 164909), (2257, 8914), (4457, 4514)]