261611217

素因数分解:

$3^2\times 7^1\times {\mathrm{1697}}^1\times {\mathrm{2447}}^1$

素因数の和:4157

約数の個数: 24

約数和(自身を含む): 432297216

約数和(自身を除く): 170685999

約数列:

[1, 3, 7, 9, 21, 63, 1697, 2447, 5091, 7341, 11879, 15273, 17129, 22023, 35637, 51387, 106911, 154161, 4152559, 12457677, 29067913, 37373031, 87203739, 261611217]

約数ペア:

[(1, 261611217), (3, 87203739), (7, 37373031), (9, 29067913), (21, 12457677), (63, 4152559), (1697, 154161), (2447, 106911), (5091, 51387), (7341, 35637), (11879, 22023), (15273, 17129)]