21821930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167861}}^1$

素因数の和:167881

約数の個数: 16

約数和(自身を含む): 42301224

約数和(自身を除く): 20479294

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167861, 335722, 839305, 1678610, 2182193, 4364386, 10910965, 21821930]

約数ペア:

[(1, 21821930), (2, 10910965), (5, 4364386), (10, 2182193), (13, 1678610), (26, 839305), (65, 335722), (130, 167861)]