21085810

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16603}}^1$

素因数の和:16737

約数の個数: 16

約数和(自身を含む): 38255616

約数和(自身を除く): 17169806

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 16603, 33206, 83015, 166030, 2108581, 4217162, 10542905, 21085810]

約数ペア:

[(1, 21085810), (2, 10542905), (5, 4217162), (10, 2108581), (127, 166030), (254, 83015), (635, 33206), (1270, 16603)]