12999385

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11981}}^1$

素因数の和:12024

約数の個数: 16

約数和(自身を含む): 18404352

約数和(自身を除く): 5404967

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 11981, 59905, 83867, 371411, 419335, 1857055, 2599877, 12999385]

約数ペア:

[(1, 12999385), (5, 2599877), (7, 1857055), (31, 419335), (35, 371411), (155, 83867), (217, 59905), (1085, 11981)]