81101019

素因数分解:

$3^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1\times {\mathrm{421}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 109348640

約数和(自身を除く): 28247621

約数列:

[1, 3, 157, 409, 421, 471, 1227, 1263, 64213, 66097, 172189, 192639, 198291, 516567, 27033673, 81101019]

約数ペア:

[(1, 81101019), (3, 27033673), (157, 516567), (409, 198291), (421, 192639), (471, 172189), (1227, 66097), (1263, 64213)]