21252540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{354209}}^1$

素因数の和:354221

約数の個数: 24

約数和(自身を含む): 59507280

約数和(自身を除く): 38254740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 354209, 708418, 1062627, 1416836, 1771045, 2125254, 3542090, 4250508, 5313135, 7084180, 10626270, 21252540]

約数ペア:

[(1, 21252540), (2, 10626270), (3, 7084180), (4, 5313135), (5, 4250508), (6, 3542090), (10, 2125254), (12, 1771045), (15, 1416836), (20, 1062627), (30, 708418), (60, 354209)]