21092210

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26699}}^1$

素因数の和:26785

約数の個数: 16

約数和(自身を含む): 38448000

約数和(自身を除く): 17355790

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 26699, 53398, 133495, 266990, 2109221, 4218442, 10546105, 21092210]

約数ペア:

[(1, 21092210), (2, 10546105), (5, 4218442), (10, 2109221), (79, 266990), (158, 133495), (395, 53398), (790, 26699)]