21303189

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 32947200

約数和(自身を除く): 11644011

約数列:

[1, 3, 9, 27, 43, 59, 129, 177, 311, 387, 531, 933, 1161, 1593, 2537, 2799, 7611, 8397, 13373, 18349, 22833, 40119, 55047, 68499, 120357, 165141, 361071, 495423, 789007, 2367021, 7101063, 21303189]

約数ペア:

[(1, 21303189), (3, 7101063), (9, 2367021), (27, 789007), (43, 495423), (59, 361071), (129, 165141), (177, 120357), (311, 68499), (387, 55047), (531, 40119), (933, 22833), (1161, 18349), (1593, 13373), (2537, 8397), (2799, 7611)]