20343869

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 25807320

約数和(自身を除く): 5463451

約数列:

[1, 7, 13, 49, 91, 109, 293, 637, 763, 1417, 2051, 3809, 5341, 9919, 14357, 26663, 31937, 69433, 186641, 223559, 415181, 1564913, 2906267, 20343869]

約数ペア:

[(1, 20343869), (7, 2906267), (13, 1564913), (49, 415181), (91, 223559), (109, 186641), (293, 69433), (637, 31937), (763, 26663), (1417, 14357), (2051, 9919), (3809, 5341)]