19996457

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 23412480

約数和(自身を除く): 3416023

約数列:

[1, 13, 29, 31, 59, 377, 403, 767, 841, 899, 1711, 1829, 10933, 11687, 22243, 23777, 26071, 49619, 53041, 338923, 645047, 689533, 1538189, 19996457]

約数ペア:

[(1, 19996457), (13, 1538189), (29, 689533), (31, 645047), (59, 338923), (377, 53041), (403, 49619), (767, 26071), (841, 23777), (899, 22243), (1711, 11687), (1829, 10933)]