778878261

素因数分解:

$3^4\times 7^1\times {\mathrm{1373683}}^1$

素因数の和:1373702

約数の個数: 20

約数和(自身を含む): 1329726112

約数和(自身を除く): 550847851

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1373683, 4121049, 9615781, 12363147, 28847343, 37089441, 86542029, 111268323, 259626087, 778878261]

約数ペア:

[(1, 778878261), (3, 259626087), (7, 111268323), (9, 86542029), (21, 37089441), (27, 28847343), (63, 12363147), (81, 9615781), (189, 4121049), (567, 1373683)]