20016451

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{67}}^2$

素因数の和:168

約数の個数: 24

約数和(自身を含む): 25519200

約数和(自身を除く): 5502749

約数列:

[1, 7, 13, 49, 67, 91, 343, 469, 637, 871, 3283, 4459, 4489, 6097, 22981, 31423, 42679, 58357, 219961, 298753, 408499, 1539727, 2859493, 20016451]

約数ペア:

[(1, 20016451), (7, 2859493), (13, 1539727), (49, 408499), (67, 298753), (91, 219961), (343, 58357), (469, 42679), (637, 31423), (871, 22981), (3283, 6097), (4459, 4489)]