25990839

素因数分解:

$3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{2531}}^1$

素因数の和:2707

約数の個数: 24

約数和(自身を含む): 43185792

約数和(自身を除く): 17194953

約数列:

[1, 3, 7, 9, 21, 63, 163, 489, 1141, 1467, 2531, 3423, 7593, 10269, 17717, 22779, 53151, 159453, 412553, 1237659, 2887871, 3712977, 8663613, 25990839]

約数ペア:

[(1, 25990839), (3, 8663613), (7, 3712977), (9, 2887871), (21, 1237659), (63, 412553), (163, 159453), (489, 53151), (1141, 22779), (1467, 17717), (2531, 10269), (3423, 7593)]