31391241

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{20477}}^1$

素因数の和:20560

約数の個数: 16

約数和(自身を含む): 48491904

約数和(自身を除く): 17100663

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 20477, 61431, 143339, 430017, 1494821, 4484463, 10463747, 31391241]

約数ペア:

[(1, 31391241), (3, 10463747), (7, 4484463), (21, 1494821), (73, 430017), (219, 143339), (511, 61431), (1533, 20477)]