19788461

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 25331712

約数和(自身を除く): 5543251

約数列:

[1, 7, 11, 61, 77, 121, 383, 427, 671, 847, 2681, 4213, 4697, 7381, 23363, 29491, 46343, 51667, 163541, 256993, 324401, 1798951, 2826923, 19788461]

約数ペア:

[(1, 19788461), (7, 2826923), (11, 1798951), (61, 324401), (77, 256993), (121, 163541), (383, 51667), (427, 46343), (671, 29491), (847, 23363), (2681, 7381), (4213, 4697)]