21897445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{3529}}^1$

素因数の和:3624

約数の個数: 16

約数和(自身を含む): 28211760

約数和(自身を除く): 6314315

約数列:

[1, 5, 17, 73, 85, 365, 1241, 3529, 6205, 17645, 59993, 257617, 299965, 1288085, 4379489, 21897445]

約数ペア:

[(1, 21897445), (5, 4379489), (17, 1288085), (73, 299965), (85, 257617), (365, 59993), (1241, 17645), (3529, 6205)]