18890559

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{163}}^2$

素因数の和:411

約数の個数: 18

約数和(自身を含む): 27802320

約数和(自身を除く): 8911761

約数列:

[1, 3, 9, 79, 163, 237, 489, 711, 1467, 12877, 26569, 38631, 79707, 115893, 239121, 2098951, 6296853, 18890559]

約数ペア:

[(1, 18890559), (3, 6296853), (9, 2098951), (79, 239121), (163, 115893), (237, 79707), (489, 38631), (711, 26569), (1467, 12877)]