173890431

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 303252768

約数和(自身を除く): 129362337

約数列:

[1, 3, 9, 11, 13, 33, 39, 71, 99, 117, 121, 143, 173, 213, 363, 429, 519, 639, 781, 923, 1089, 1287, 1557, 1573, 1903, 2249, 2343, 2769, 4719, 5709, 6747, 7029, 8307, 8591, 10153, 12283, 14157, 17127, 20241, 20933, 24739, 25773, 30459, 36849, 62799, 74217, 77319, 91377, 110547, 111683, 135113, 159679, 188397, 222651, 272129, 335049, 405339, 479037, 816387, 1005147, 1216017, 1437111, 1486243, 1756469, 2449161, 4458729, 5269407, 13376187, 15808221, 19321159, 57963477, 173890431]

約数ペア:

[(1, 173890431), (3, 57963477), (9, 19321159), (11, 15808221), (13, 13376187), (33, 5269407), (39, 4458729), (71, 2449161), (99, 1756469), (117, 1486243), (121, 1437111), (143, 1216017), (173, 1005147), (213, 816387), (363, 479037), (429, 405339), (519, 335049), (639, 272129), (781, 222651), (923, 188397), (1089, 159679), (1287, 135113), (1557, 111683), (1573, 110547), (1903, 91377), (2249, 77319), (2343, 74217), (2769, 62799), (4719, 36849), (5709, 30459), (6747, 25773), (7029, 24739), (8307, 20933), (8591, 20241), (10153, 17127), (12283, 14157)]