20047401

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:518

約数の個数: 36

約数和(自身を含む): 32678100

約数和(自身を除く): 12630699

約数列:

[1, 3, 9, 11, 33, 41, 99, 121, 123, 363, 369, 449, 451, 1089, 1347, 1353, 4041, 4059, 4939, 4961, 14817, 14883, 18409, 44451, 44649, 54329, 55227, 162987, 165681, 202499, 488961, 607497, 1822491, 2227489, 6682467, 20047401]

約数ペア:

[(1, 20047401), (3, 6682467), (9, 2227489), (11, 1822491), (33, 607497), (41, 488961), (99, 202499), (121, 165681), (123, 162987), (363, 55227), (369, 54329), (449, 44649), (451, 44451), (1089, 18409), (1347, 14883), (1353, 14817), (4041, 4961), (4059, 4939)]