18876838

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{661}}^1$

素因数の和:903

約数の個数: 16

約数和(自身を含む): 28836720

約数和(自身を除く): 9959882

約数列:

[1, 2, 109, 131, 218, 262, 661, 1322, 14279, 28558, 72049, 86591, 144098, 173182, 9438419, 18876838]

約数ペア:

[(1, 18876838), (2, 9438419), (109, 173182), (131, 144098), (218, 86591), (262, 72049), (661, 28558), (1322, 14279)]