221450943

素因数分解:

$3^1\times 7^2\times {\mathrm{313}}^1\times {\mathrm{4813}}^1$

素因数の和:5143

約数の個数: 24

約数和(自身を含む): 344643888

約数和(自身を除く): 123192945

約数列:

[1, 3, 7, 21, 49, 147, 313, 939, 2191, 4813, 6573, 14439, 15337, 33691, 46011, 101073, 235837, 707511, 1506469, 4519407, 10545283, 31635849, 73816981, 221450943]

約数ペア:

[(1, 221450943), (3, 73816981), (7, 31635849), (21, 10545283), (49, 4519407), (147, 1506469), (313, 707511), (939, 235837), (2191, 101073), (4813, 46011), (6573, 33691), (14439, 15337)]