20996812

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{317}}^1\times {\mathrm{571}}^1$

素因数の和:921

約数の個数: 24

約数和(自身を含む): 38198160

約数和(自身を除く): 17201348

約数列:

[1, 2, 4, 29, 58, 116, 317, 571, 634, 1142, 1268, 2284, 9193, 16559, 18386, 33118, 36772, 66236, 181007, 362014, 724028, 5249203, 10498406, 20996812]

約数ペア:

[(1, 20996812), (2, 10498406), (4, 5249203), (29, 724028), (58, 362014), (116, 181007), (317, 66236), (571, 36772), (634, 33118), (1142, 18386), (1268, 16559), (2284, 9193)]