16557129

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{2879}}^1$

素因数の和:2962

約数の個数: 20

約数和(自身を含む): 25090560

約数和(自身を除く): 8533431

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 2879, 5751, 8637, 25911, 77733, 204409, 233199, 613227, 1839681, 5519043, 16557129]

約数ペア:

[(1, 16557129), (3, 5519043), (9, 1839681), (27, 613227), (71, 233199), (81, 204409), (213, 77733), (639, 25911), (1917, 8637), (2879, 5751)]