21971686

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{13681}}^1$

素因数の和:13767

約数の個数: 16

約数和(自身を含む): 36448848

約数和(自身を除く): 14477162

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 13681, 27362, 150491, 300982, 998713, 1997426, 10985843, 21971686]

約数ペア:

[(1, 21971686), (2, 10985843), (11, 1997426), (22, 998713), (73, 300982), (146, 150491), (803, 27362), (1606, 13681)]