20819654

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{2221}}^1$

素因数の和:2375

約数の個数: 16

約数和(自身を含む): 32263440

約数和(自身を除く): 11443786

約数列:

[1, 2, 43, 86, 109, 218, 2221, 4442, 4687, 9374, 95503, 191006, 242089, 484178, 10409827, 20819654]

約数ペア:

[(1, 20819654), (2, 10409827), (43, 484178), (86, 242089), (109, 191006), (218, 95503), (2221, 9374), (4442, 4687)]