21680070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{722669}}^1$

素因数の和:722679

約数の個数: 16

約数和(自身を含む): 52032240

約数和(自身を除く): 30352170

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 722669, 1445338, 2168007, 3613345, 4336014, 7226690, 10840035, 21680070]

約数ペア:

[(1, 21680070), (2, 10840035), (3, 7226690), (5, 4336014), (6, 3613345), (10, 2168007), (15, 1445338), (30, 722669)]