647402007

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{7919}}^1$

素因数の和:8175

約数の個数: 32

約数和(自身を含む): 1049241600

約数和(自身を除く): 401839593

約数列:

[1, 3, 7, 17, 21, 51, 119, 229, 357, 687, 1603, 3893, 4809, 7919, 11679, 23757, 27251, 55433, 81753, 134623, 166299, 403869, 942361, 1813451, 2827083, 5440353, 12694157, 30828667, 38082471, 92486001, 215800669, 647402007]

約数ペア:

[(1, 647402007), (3, 215800669), (7, 92486001), (17, 38082471), (21, 30828667), (51, 12694157), (119, 5440353), (229, 2827083), (357, 1813451), (687, 942361), (1603, 403869), (3893, 166299), (4809, 134623), (7919, 81753), (11679, 55433), (23757, 27251)]