20899687563

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{991}}^1\times {\mathrm{18451}}^1$

素因数の和:19575

約数の個数: 24

約数和(自身を含む): 30458494976

約数和(自身を除く): 9558807413

約数列:

[1, 3, 9, 127, 381, 991, 1143, 2973, 8919, 18451, 55353, 125857, 166059, 377571, 1132713, 2343277, 7029831, 18284941, 21089493, 54854823, 164564469, 2322187507, 6966562521, 20899687563]

約数ペア:

[(1, 20899687563), (3, 6966562521), (9, 2322187507), (127, 164564469), (381, 54854823), (991, 21089493), (1143, 18284941), (2973, 7029831), (8919, 2343277), (18451, 1132713), (55353, 377571), (125857, 166059)]