28308917

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2339}}^1$

素因数の和:2385

約数の個数: 24

約数和(自身を含む): 37346400

約数和(自身を除く): 9037483

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 637, 931, 1729, 2339, 12103, 16373, 30407, 44441, 114611, 212849, 311087, 577733, 1489943, 2177609, 4044131, 28308917]

約数ペア:

[(1, 28308917), (7, 4044131), (13, 2177609), (19, 1489943), (49, 577733), (91, 311087), (133, 212849), (247, 114611), (637, 44441), (931, 30407), (1729, 16373), (2339, 12103)]