21128370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{704279}}^1$

素因数の和:704289

約数の個数: 16

約数和(自身を含む): 50708160

約数和(自身を除く): 29579790

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 704279, 1408558, 2112837, 3521395, 4225674, 7042790, 10564185, 21128370]

約数ペア:

[(1, 21128370), (2, 10564185), (3, 7042790), (5, 4225674), (6, 3521395), (10, 2112837), (15, 1408558), (30, 704279)]