21136569

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1\times {\mathrm{617}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 29762880

約数和(自身を除く): 8626311

約数列:

[1, 3, 19, 57, 601, 617, 1803, 1851, 11419, 11723, 34257, 35169, 370817, 1112451, 7045523, 21136569]

約数ペア:

[(1, 21136569), (3, 7045523), (19, 1112451), (57, 370817), (601, 35169), (617, 34257), (1803, 11723), (1851, 11419)]