20722401

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3391}}^1$

素因数の和:3501

約数の個数: 24

約数和(自身を含む): 34571264

約数和(自身を除く): 13848863

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2037, 3391, 6111, 10173, 23737, 30519, 71211, 213633, 328927, 986781, 2302489, 2960343, 6907467, 20722401]

約数ペア:

[(1, 20722401), (3, 6907467), (7, 2960343), (9, 2302489), (21, 986781), (63, 328927), (97, 213633), (291, 71211), (679, 30519), (873, 23737), (2037, 10173), (3391, 6111)]