40220577

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{20981}}^1$

素因数の和:21061

約数の個数: 16

約数和(自身を含む): 60428160

約数和(自身を除く): 20207583

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 20981, 62943, 188829, 566487, 1489651, 4468953, 13406859, 40220577]

約数ペア:

[(1, 40220577), (3, 13406859), (9, 4468953), (27, 1489651), (71, 566487), (213, 188829), (639, 62943), (1917, 20981)]