21418788

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12841}}^1$

素因数の和:12987

約数の個数: 24

約数和(自身を含む): 50340640

約数和(自身を除く): 28921852

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12841, 25682, 38523, 51364, 77046, 154092, 1784899, 3569798, 5354697, 7139596, 10709394, 21418788]

約数ペア:

[(1, 21418788), (2, 10709394), (3, 7139596), (4, 5354697), (6, 3569798), (12, 1784899), (139, 154092), (278, 77046), (417, 51364), (556, 38523), (834, 25682), (1668, 12841)]