20745179

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1123}}^1$

素因数の和:1179

約数の個数: 24

約数和(自身を含む): 26908560

約数和(自身を除く): 6163381

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 1123, 1421, 2639, 7861, 14599, 18473, 32567, 55027, 102193, 227969, 423371, 715351, 1595783, 2963597, 20745179]

約数ペア:

[(1, 20745179), (7, 2963597), (13, 1595783), (29, 715351), (49, 423371), (91, 227969), (203, 102193), (377, 55027), (637, 32567), (1123, 18473), (1421, 14599), (2639, 7861)]