201990991

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1\times {\mathrm{1439}}^1$

素因数の和:1838

約数の個数: 16

約数和(自身を含む): 223948800

約数和(自身を除く): 21957809

約数列:

[1, 17, 23, 359, 391, 1439, 6103, 8257, 24463, 33097, 140369, 516601, 562649, 8782217, 11881823, 201990991]

約数ペア:

[(1, 201990991), (17, 11881823), (23, 8782217), (359, 562649), (391, 516601), (1439, 140369), (6103, 33097), (8257, 24463)]