20900613

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{631}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 28525952

約数和(自身を除く): 7625339

約数列:

[1, 3, 61, 181, 183, 543, 631, 1893, 11041, 33123, 38491, 114211, 115473, 342633, 6966871, 20900613]

約数ペア:

[(1, 20900613), (3, 6966871), (61, 342633), (181, 115473), (183, 114211), (543, 38491), (631, 33123), (1893, 11041)]