31747863

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 49766400

約数和(自身を除く): 18018537

約数列:

[1, 3, 7, 21, 71, 107, 199, 213, 321, 497, 597, 749, 1393, 1491, 2247, 4179, 7597, 14129, 21293, 22791, 42387, 53179, 63879, 98903, 149051, 159537, 296709, 447153, 1511803, 4535409, 10582621, 31747863]

約数ペア:

[(1, 31747863), (3, 10582621), (7, 4535409), (21, 1511803), (71, 447153), (107, 296709), (199, 159537), (213, 149051), (321, 98903), (497, 63879), (597, 53179), (749, 42387), (1393, 22791), (1491, 21293), (2247, 14129), (4179, 7597)]