21003128

素因数分解:

$2^3\times {\mathrm{283}}^1\times {\mathrm{9277}}^1$

素因数の和:9566

約数の個数: 16

約数和(自身を含む): 39524280

約数和(自身を除く): 18521152

約数列:

[1, 2, 4, 8, 283, 566, 1132, 2264, 9277, 18554, 37108, 74216, 2625391, 5250782, 10501564, 21003128]

約数ペア:

[(1, 21003128), (2, 10501564), (4, 5250782), (8, 2625391), (283, 74216), (566, 37108), (1132, 18554), (2264, 9277)]