21045110

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29641}}^1$

素因数の和:29719

約数の個数: 16

約数和(自身を含む): 38416032

約数和(自身を除く): 17370922

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29641, 59282, 148205, 296410, 2104511, 4209022, 10522555, 21045110]

約数ペア:

[(1, 21045110), (2, 10522555), (5, 4209022), (10, 2104511), (71, 296410), (142, 148205), (355, 59282), (710, 29641)]