18626637

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 25391232

約数和(自身を除く): 6764595

約数列:

[1, 3, 71, 157, 213, 471, 557, 1671, 11147, 33441, 39547, 87449, 118641, 262347, 6208879, 18626637]

約数ペア:

[(1, 18626637), (3, 6208879), (71, 262347), (157, 118641), (213, 87449), (471, 39547), (557, 33441), (1671, 11147)]