2173521

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:165

約数の個数: 32

約数和(自身を含む): 3548160

約数和(自身を除く): 1374639

約数列:

[1, 3, 7, 21, 29, 43, 83, 87, 129, 203, 249, 301, 581, 609, 903, 1247, 1743, 2407, 3569, 3741, 7221, 8729, 10707, 16849, 24983, 26187, 50547, 74949, 103501, 310503, 724507, 2173521]

約数ペア:

[(1, 2173521), (3, 724507), (7, 310503), (21, 103501), (29, 74949), (43, 50547), (83, 26187), (87, 24983), (129, 16849), (203, 10707), (249, 8729), (301, 7221), (581, 3741), (609, 3569), (903, 2407), (1247, 1743)]