21823216

素因数分解:

$2^4\times {\mathrm{683}}^1\times {\mathrm{1997}}^1$

素因数の和:2688

約数の個数: 20

約数和(自身を含む): 42365592

約数和(自身を除く): 20542376

約数列:

[1, 2, 4, 8, 16, 683, 1366, 1997, 2732, 3994, 5464, 7988, 10928, 15976, 31952, 1363951, 2727902, 5455804, 10911608, 21823216]

約数ペア:

[(1, 21823216), (2, 10911608), (4, 5455804), (8, 2727902), (16, 1363951), (683, 31952), (1366, 15976), (1997, 10928), (2732, 7988), (3994, 5464)]