20203263

素因数分解:

$3^5\times {\mathrm{71}}^1\times {\mathrm{1171}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 30715776

約数和(自身を除く): 10512513

約数列:

[1, 3, 9, 27, 71, 81, 213, 243, 639, 1171, 1917, 3513, 5751, 10539, 17253, 31617, 83141, 94851, 249423, 284553, 748269, 2244807, 6734421, 20203263]

約数ペア:

[(1, 20203263), (3, 6734421), (9, 2244807), (27, 748269), (71, 284553), (81, 249423), (213, 94851), (243, 83141), (639, 31617), (1171, 17253), (1917, 10539), (3513, 5751)]