17789121

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 30820608

約数和(自身を除く): 13031487

約数列:

[1, 3, 7, 9, 21, 41, 63, 71, 97, 123, 213, 287, 291, 369, 497, 639, 679, 861, 873, 1491, 2037, 2583, 2911, 3977, 4473, 6111, 6887, 8733, 11931, 20377, 20661, 26199, 27839, 35793, 48209, 61131, 61983, 83517, 144627, 183393, 250551, 282367, 433881, 847101, 1976569, 2541303, 5929707, 17789121]

約数ペア:

[(1, 17789121), (3, 5929707), (7, 2541303), (9, 1976569), (21, 847101), (41, 433881), (63, 282367), (71, 250551), (97, 183393), (123, 144627), (213, 83517), (287, 61983), (291, 61131), (369, 48209), (497, 35793), (639, 27839), (679, 26199), (861, 20661), (873, 20377), (1491, 11931), (2037, 8733), (2583, 6887), (2911, 6111), (3977, 4473)]