21352617

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 37110528

約数和(自身を除く): 15757911

約数列:

[1, 3, 9, 11, 13, 33, 39, 47, 99, 117, 141, 143, 353, 423, 429, 517, 611, 1059, 1287, 1551, 1833, 3177, 3883, 4589, 4653, 5499, 6721, 11649, 13767, 16591, 20163, 34947, 41301, 49773, 50479, 60489, 149319, 151437, 182501, 215683, 454311, 547503, 647049, 1642509, 1941147, 2372513, 7117539, 21352617]

約数ペア:

[(1, 21352617), (3, 7117539), (9, 2372513), (11, 1941147), (13, 1642509), (33, 647049), (39, 547503), (47, 454311), (99, 215683), (117, 182501), (141, 151437), (143, 149319), (353, 60489), (423, 50479), (429, 49773), (517, 41301), (611, 34947), (1059, 20163), (1287, 16591), (1551, 13767), (1833, 11649), (3177, 6721), (3883, 5499), (4589, 4653)]