1138860009

素因数分解:

$3^2\times 7^2\times {\mathrm{1607}}^2$

素因数の和:3234

約数の個数: 27

約数和(自身を含む): 1914786237

約数和(自身を除く): 775926228

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 1607, 4821, 11249, 14463, 33747, 78743, 101241, 236229, 708687, 2582449, 7747347, 18077143, 23242041, 54231429, 126540001, 162694287, 379620003, 1138860009]

約数ペア:

[(1, 1138860009), (3, 379620003), (7, 162694287), (9, 126540001), (21, 54231429), (49, 23242041), (63, 18077143), (147, 7747347), (441, 2582449), (1607, 708687), (4821, 236229), (11249, 101241), (14463, 78743)]