21210756

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{252509}}^1$

素因数の和:252523

約数の個数: 24

約数和(自身を含む): 56562240

約数和(自身を除く): 35351484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 252509, 505018, 757527, 1010036, 1515054, 1767563, 3030108, 3535126, 5302689, 7070252, 10605378, 21210756]

約数ペア:

[(1, 21210756), (2, 10605378), (3, 7070252), (4, 5302689), (6, 3535126), (7, 3030108), (12, 1767563), (14, 1515054), (21, 1010036), (28, 757527), (42, 505018), (84, 252509)]