21492393

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 33008640

約数和(自身を除く): 11516247

約数列:

[1, 3, 13, 29, 31, 39, 87, 93, 377, 403, 613, 899, 1131, 1209, 1839, 2697, 7969, 11687, 17777, 19003, 23907, 35061, 53331, 57009, 231101, 247039, 551087, 693303, 741117, 1653261, 7164131, 21492393]

約数ペア:

[(1, 21492393), (3, 7164131), (13, 1653261), (29, 741117), (31, 693303), (39, 551087), (87, 247039), (93, 231101), (377, 57009), (403, 53331), (613, 35061), (899, 23907), (1131, 19003), (1209, 17777), (1839, 11687), (2697, 7969)]