20117205

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{26297}}^1$

素因数の和:26325

約数の個数: 24

約数和(自身を含む): 36922392

約数和(自身を除く): 16805187

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 26297, 78891, 131485, 236673, 394455, 447049, 1183365, 1341147, 2235245, 4023441, 6705735, 20117205]

約数ペア:

[(1, 20117205), (3, 6705735), (5, 4023441), (9, 2235245), (15, 1341147), (17, 1183365), (45, 447049), (51, 394455), (85, 236673), (153, 131485), (255, 78891), (765, 26297)]