28138593

素因数分解:

$3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{2857}}^1$

素因数の和:2941

約数の個数: 24

約数和(自身を含む): 44310432

約数和(自身を除く): 16171839

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 469, 1407, 2857, 3283, 8571, 9849, 19999, 59997, 139993, 191419, 419979, 574257, 1339933, 4019799, 9379531, 28138593]

約数ペア:

[(1, 28138593), (3, 9379531), (7, 4019799), (21, 1339933), (49, 574257), (67, 419979), (147, 191419), (201, 139993), (469, 59997), (1407, 19999), (2857, 9849), (3283, 8571)]