21254370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{708479}}^1$

素因数の和:708489

約数の個数: 16

約数和(自身を含む): 51010560

約数和(自身を除く): 29756190

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 708479, 1416958, 2125437, 3542395, 4250874, 7084790, 10627185, 21254370]

約数ペア:

[(1, 21254370), (2, 10627185), (3, 7084790), (5, 4250874), (6, 3542395), (10, 2125437), (15, 1416958), (30, 708479)]