28008261

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{18199}}^1$

素因数の和:18230

約数の個数: 20

約数和(自身を含む): 44044000

約数和(自身を除く): 16035739

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 18199, 54597, 163791, 345781, 491373, 1037343, 1474119, 3112029, 9336087, 28008261]

約数ペア:

[(1, 28008261), (3, 9336087), (9, 3112029), (19, 1474119), (27, 1037343), (57, 491373), (81, 345781), (171, 163791), (513, 54597), (1539, 18199)]