21061390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{300877}}^1$

素因数の和:300891

約数の個数: 16

約数和(自身を含む): 43326432

約数和(自身を除く): 22265042

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 300877, 601754, 1504385, 2106139, 3008770, 4212278, 10530695, 21061390]

約数ペア:

[(1, 21061390), (2, 10530695), (5, 4212278), (7, 3008770), (10, 2106139), (14, 1504385), (35, 601754), (70, 300877)]