21086830

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{21739}}^1$

素因数の和:21843

約数の個数: 16

約数和(自身を含む): 38349360

約数和(自身を除く): 17262530

約数列:

[1, 2, 5, 10, 97, 194, 485, 970, 21739, 43478, 108695, 217390, 2108683, 4217366, 10543415, 21086830]

約数ペア:

[(1, 21086830), (2, 10543415), (5, 4217366), (10, 2108683), (97, 217390), (194, 108695), (485, 43478), (970, 21739)]