18979018

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{677}}^1$

素因数の和:917

約数の個数: 16

約数和(自身を含む): 28996704

約数和(自身を除く): 10017686

約数列:

[1, 2, 107, 131, 214, 262, 677, 1354, 14017, 28034, 72439, 88687, 144878, 177374, 9489509, 18979018]

約数ペア:

[(1, 18979018), (2, 9489509), (107, 177374), (131, 144878), (214, 88687), (262, 72439), (677, 28034), (1354, 14017)]