21000741870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{700024729}}^1$

素因数の和:700024739

約数の個数: 16

約数和(自身を含む): 50401780560

約数和(自身を除く): 29401038690

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 700024729, 1400049458, 2100074187, 3500123645, 4200148374, 7000247290, 10500370935, 21000741870]

約数ペア:

[(1, 21000741870), (2, 10500370935), (3, 7000247290), (5, 4200148374), (6, 3500123645), (10, 2100074187), (15, 1400049458), (30, 700024729)]