21809186

素因数分解:

$2^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{5009}}^1$

素因数の和:5329

約数の個数: 16

約数和(自身を含む): 37514880

約数和(自身を除く): 15705694

約数列:

[1, 2, 7, 14, 311, 622, 2177, 4354, 5009, 10018, 35063, 70126, 1557799, 3115598, 10904593, 21809186]

約数ペア:

[(1, 21809186), (2, 10904593), (7, 3115598), (14, 1557799), (311, 70126), (622, 35063), (2177, 10018), (4354, 5009)]