20272995

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10477}}^1$

素因数の和:10531

約数の個数: 24

約数和(自身を含む): 35960496

約数和(自身を除く): 15687501

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10477, 31431, 52385, 94293, 157155, 450511, 471465, 1351533, 2252555, 4054599, 6757665, 20272995]

約数ペア:

[(1, 20272995), (3, 6757665), (5, 4054599), (9, 2252555), (15, 1351533), (43, 471465), (45, 450511), (129, 157155), (215, 94293), (387, 52385), (645, 31431), (1935, 10477)]