20702481

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2963}}^1$

素因数の和:3120

約数の個数: 16

約数和(自身を含む): 29450304

約数和(自身を除く): 8747823

約数列:

[1, 3, 17, 51, 137, 411, 2329, 2963, 6987, 8889, 50371, 151113, 405931, 1217793, 6900827, 20702481]

約数ペア:

[(1, 20702481), (3, 6900827), (17, 1217793), (51, 405931), (137, 151113), (411, 50371), (2329, 8889), (2963, 6987)]