20858456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{153371}}^1$

素因数の和:153394

約数の個数: 16

約数和(自身を含む): 41410440

約数和(自身を除く): 20551984

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 153371, 306742, 613484, 1226968, 2607307, 5214614, 10429228, 20858456]

約数ペア:

[(1, 20858456), (2, 10429228), (4, 5214614), (8, 2607307), (17, 1226968), (34, 613484), (68, 306742), (136, 153371)]