215681291

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{1327}}^1$

素因数の和:1479

約数の個数: 24

約数和(自身を含む): 261605376

約数和(自身を除く): 45924085

約数列:

[1, 7, 31, 49, 107, 217, 749, 1327, 1519, 3317, 5243, 9289, 23219, 41137, 65023, 141989, 162533, 287959, 993923, 2015713, 4401659, 6957461, 30811613, 215681291]

約数ペア:

[(1, 215681291), (7, 30811613), (31, 6957461), (49, 4401659), (107, 2015713), (217, 993923), (749, 287959), (1327, 162533), (1519, 141989), (3317, 65023), (5243, 41137), (9289, 23219)]