20742806

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 36640512

約数和(自身を除く): 15897706

約数列:

[1, 2, 7, 14, 61, 107, 122, 214, 227, 427, 454, 749, 854, 1498, 1589, 3178, 6527, 13054, 13847, 24289, 27694, 45689, 48578, 91378, 96929, 170023, 193858, 340046, 1481629, 2963258, 10371403, 20742806]

約数ペア:

[(1, 20742806), (2, 10371403), (7, 2963258), (14, 1481629), (61, 340046), (107, 193858), (122, 170023), (214, 96929), (227, 91378), (427, 48578), (454, 45689), (749, 27694), (854, 24289), (1498, 13847), (1589, 13054), (3178, 6527)]