20504259

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{1553}}^1$

素因数の和:1728

約数の個数: 20

約数和(自身を含む): 30837576

約数和(自身を除く): 10333317

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 1553, 4401, 4659, 13203, 13977, 41931, 125793, 253139, 759417, 2278251, 6834753, 20504259]

約数ペア:

[(1, 20504259), (3, 6834753), (9, 2278251), (27, 759417), (81, 253139), (163, 125793), (489, 41931), (1467, 13977), (1553, 13203), (4401, 4659)]