20871570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{695719}}^1$

素因数の和:695729

約数の個数: 16

約数和(自身を含む): 50091840

約数和(自身を除く): 29220270

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 695719, 1391438, 2087157, 3478595, 4174314, 6957190, 10435785, 20871570]

約数ペア:

[(1, 20871570), (2, 10435785), (3, 6957190), (5, 4174314), (6, 3478595), (10, 2087157), (15, 1391438), (30, 695719)]