20879745

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{60521}}^1$

素因数の和:60552

約数の個数: 16

約数和(自身を含む): 34860672

約数和(自身を除く): 13980927

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 60521, 181563, 302605, 907815, 1391983, 4175949, 6959915, 20879745]

約数ペア:

[(1, 20879745), (3, 6959915), (5, 4175949), (15, 1391983), (23, 907815), (69, 302605), (115, 181563), (345, 60521)]