19976912

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{3989}}^1$

素因数の和:4310

約数の個数: 20

約数和(自身を含む): 38838660

約数和(自身を除く): 18861748

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 3989, 5008, 7978, 15956, 31912, 63824, 1248557, 2497114, 4994228, 9988456, 19976912]

約数ペア:

[(1, 19976912), (2, 9988456), (4, 4994228), (8, 2497114), (16, 1248557), (313, 63824), (626, 31912), (1252, 15956), (2504, 7978), (3989, 5008)]