21065726

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{3119}}^1$

素因数の和:3439

約数の個数: 16

約数和(自身を含む): 34594560

約数和(自身を除く): 13528834

約数列:

[1, 2, 11, 22, 307, 614, 3119, 3377, 6238, 6754, 34309, 68618, 957533, 1915066, 10532863, 21065726]

約数ペア:

[(1, 21065726), (2, 10532863), (11, 1915066), (22, 957533), (307, 68618), (614, 34309), (3119, 6754), (3377, 6238)]