20420642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{40357}}^1$

素因数の和:40393

約数の個数: 16

約数和(自身を含む): 34869312

約数和(自身を除く): 14448670

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 40357, 80714, 443927, 887854, 928211, 1856422, 10210321, 20420642]

約数ペア:

[(1, 20420642), (2, 10210321), (11, 1856422), (22, 928211), (23, 887854), (46, 443927), (253, 80714), (506, 40357)]