189808521

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1\times {\mathrm{431}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 295170048

約数和(自身を除く): 105361527

約数列:

[1, 3, 7, 21, 67, 201, 313, 431, 469, 939, 1293, 1407, 2191, 3017, 6573, 9051, 20971, 28877, 62913, 86631, 134903, 146797, 202139, 404709, 440391, 606417, 944321, 2832963, 9038501, 27115503, 63269507, 189808521]

約数ペア:

[(1, 189808521), (3, 63269507), (7, 27115503), (21, 9038501), (67, 2832963), (201, 944321), (313, 606417), (431, 440391), (469, 404709), (939, 202139), (1293, 146797), (1407, 134903), (2191, 86631), (3017, 62913), (6573, 28877), (9051, 20971)]