17520321

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2213}}^1$

素因数の和:2265

約数の個数: 32

約数和(自身を含む): 29756160

約数和(自身を除く): 12235839

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 203, 273, 377, 609, 1131, 2213, 2639, 6639, 7917, 15491, 28769, 46473, 64177, 86307, 192531, 201383, 449239, 604149, 834301, 1347717, 2502903, 5840107, 17520321]

約数ペア:

[(1, 17520321), (3, 5840107), (7, 2502903), (13, 1347717), (21, 834301), (29, 604149), (39, 449239), (87, 201383), (91, 192531), (203, 86307), (273, 64177), (377, 46473), (609, 28769), (1131, 15491), (2213, 7917), (2639, 6639)]