179920209

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{15493}}^1$

素因数の和:15589

約数の個数: 24

約数和(自身を含む): 282610560

約数和(自身を除く): 102690351

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 3871, 11613, 15493, 46479, 108451, 325353, 759157, 1223947, 2277471, 3671841, 8567629, 25702887, 59973403, 179920209]

約数ペア:

[(1, 179920209), (3, 59973403), (7, 25702887), (21, 8567629), (49, 3671841), (79, 2277471), (147, 1223947), (237, 759157), (553, 325353), (1659, 108451), (3871, 46479), (11613, 15493)]