209218949

素因数分解:

${\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 231178368

約数和(自身を除く): 21959419

約数列:

[1, 17, 47, 73, 211, 289, 799, 1241, 3431, 3587, 9917, 13583, 15403, 21097, 58327, 60979, 168589, 261851, 723941, 991559, 2866013, 4451467, 12306997, 209218949]

約数ペア:

[(1, 209218949), (17, 12306997), (47, 4451467), (73, 2866013), (211, 991559), (289, 723941), (799, 261851), (1241, 168589), (3431, 60979), (3587, 58327), (9917, 21097), (13583, 15403)]