21710349

素因数分解:

$3^9\times {\mathrm{1103}}^1$

素因数の和:1130

約数の個数: 20

約数和(自身を含む): 32594496

約数和(自身を除く): 10884147

約数列:

[1, 3, 9, 27, 81, 243, 729, 1103, 2187, 3309, 6561, 9927, 19683, 29781, 89343, 268029, 804087, 2412261, 7236783, 21710349]

約数ペア:

[(1, 21710349), (3, 7236783), (9, 2412261), (27, 804087), (81, 268029), (243, 89343), (729, 29781), (1103, 19683), (2187, 9927), (3309, 6561)]