521539991

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{449}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 650073600

約数和(自身を除く): 128533609

約数列:

[1, 7, 17, 43, 119, 227, 301, 449, 731, 1589, 3143, 3859, 5117, 7633, 9761, 19307, 27013, 53431, 68327, 101923, 135149, 165937, 328219, 713461, 1161559, 1732691, 2297533, 4382689, 12128837, 30678823, 74505713, 521539991]

約数ペア:

[(1, 521539991), (7, 74505713), (17, 30678823), (43, 12128837), (119, 4382689), (227, 2297533), (301, 1732691), (449, 1161559), (731, 713461), (1589, 328219), (3143, 165937), (3859, 135149), (5117, 101923), (7633, 68327), (9761, 53431), (19307, 27013)]