20971743

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{3299}}^1$

素因数の和:3478

約数の個数: 16

約数和(自身を含む): 30307200

約数和(自身を除く): 9335457

約数列:

[1, 3, 13, 39, 163, 489, 2119, 3299, 6357, 9897, 42887, 128661, 537737, 1613211, 6990581, 20971743]

約数ペア:

[(1, 20971743), (3, 6990581), (13, 1613211), (39, 537737), (163, 128661), (489, 42887), (2119, 9897), (3299, 6357)]