21275810

素因数分解:

$2^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{2879}}^1$

素因数の和:3625

約数の個数: 16

約数和(自身を含む): 38361600

約数和(自身を除く): 17085790

約数列:

[1, 2, 5, 10, 739, 1478, 2879, 3695, 5758, 7390, 14395, 28790, 2127581, 4255162, 10637905, 21275810]

約数ペア:

[(1, 21275810), (2, 10637905), (5, 4255162), (10, 2127581), (739, 28790), (1478, 14395), (2879, 7390), (3695, 5758)]