21558922

素因数分解:

$2^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{2857}}^1$

素因数の和:2891

約数の個数: 32

約数和(自身を含む): 41155200

約数和(自身を除く): 19596278

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 343, 539, 686, 1078, 2857, 3773, 5714, 7546, 19999, 31427, 39998, 62854, 139993, 219989, 279986, 439978, 979951, 1539923, 1959902, 3079846, 10779461, 21558922]

約数ペア:

[(1, 21558922), (2, 10779461), (7, 3079846), (11, 1959902), (14, 1539923), (22, 979951), (49, 439978), (77, 279986), (98, 219989), (154, 139993), (343, 62854), (539, 39998), (686, 31427), (1078, 19999), (2857, 7546), (3773, 5714)]