20689101

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{1567}}^1$

素因数の和:1742

約数の個数: 20

約数和(自身を含む): 31115392

約数和(自身を除く): 10426291

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 1567, 4401, 4701, 13203, 14103, 42309, 126927, 255421, 766263, 2298789, 6896367, 20689101]

約数ペア:

[(1, 20689101), (3, 6896367), (9, 2298789), (27, 766263), (81, 255421), (163, 126927), (489, 42309), (1467, 14103), (1567, 13203), (4401, 4701)]