66956687

素因数分解:

$7^4\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:460

約数の個数: 20

約数和(自身を含む): 79324320

約数和(自身を除く): 12367633

約数列:

[1, 7, 49, 79, 343, 353, 553, 2401, 2471, 3871, 17297, 27097, 27887, 121079, 189679, 195209, 847553, 1366463, 9565241, 66956687]

約数ペア:

[(1, 66956687), (7, 9565241), (49, 1366463), (79, 847553), (343, 195209), (353, 189679), (553, 121079), (2401, 27887), (2471, 27097), (3871, 17297)]