21058930

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72617}}^1$

素因数の和:72653

約数の個数: 16

約数和(自身を含む): 39213720

約数和(自身を除く): 18154790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72617, 145234, 363085, 726170, 2105893, 4211786, 10529465, 21058930]

約数ペア:

[(1, 21058930), (2, 10529465), (5, 4211786), (10, 2105893), (29, 726170), (58, 363085), (145, 145234), (290, 72617)]