201991097

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{1231}}^1\times {\mathrm{2131}}^1$

素因数の和:3380

約数の個数: 16

約数和(自身を含む): 252155904

約数和(自身を除く): 50164807

約数列:

[1, 7, 11, 77, 1231, 2131, 8617, 13541, 14917, 23441, 94787, 164087, 2623261, 18362827, 28855871, 201991097]

約数ペア:

[(1, 201991097), (7, 28855871), (11, 18362827), (77, 2623261), (1231, 164087), (2131, 94787), (8617, 23441), (13541, 14917)]