21264507

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{619}}^1$

素因数の和:983

約数の個数: 24

約数和(自身を含む): 33658560

約数和(自身を除く): 12394053

約数列:

[1, 3, 9, 11, 33, 99, 347, 619, 1041, 1857, 3123, 3817, 5571, 6809, 11451, 20427, 34353, 61281, 214793, 644379, 1933137, 2362723, 7088169, 21264507]

約数ペア:

[(1, 21264507), (3, 7088169), (9, 2362723), (11, 1933137), (33, 644379), (99, 214793), (347, 61281), (619, 34353), (1041, 20427), (1857, 11451), (3123, 6809), (3817, 5571)]