20899641

素因数分解:

$3^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{1613}}^1$

素因数の和:2240

約数の個数: 16

約数和(自身を含む): 31918464

約数和(自身を除く): 11018823

約数列:

[1, 3, 7, 21, 617, 1613, 1851, 4319, 4839, 11291, 12957, 33873, 995221, 2985663, 6966547, 20899641]

約数ペア:

[(1, 20899641), (3, 6966547), (7, 2985663), (21, 995221), (617, 33873), (1613, 12957), (1851, 11291), (4319, 4839)]