20990566

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{1319}}^1$

素因数の和:1503

約数の個数: 16

約数和(自身を含む): 32234400

約数和(自身を除く): 11243834

約数列:

[1, 2, 73, 109, 146, 218, 1319, 2638, 7957, 15914, 96287, 143771, 192574, 287542, 10495283, 20990566]

約数ペア:

[(1, 20990566), (2, 10495283), (73, 287542), (109, 192574), (146, 143771), (218, 96287), (1319, 15914), (2638, 7957)]