20527857

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6389}}^1$

素因数の和:6422

約数の個数: 32

約数和(自身を含む): 36806400

約数和(自身を除く): 16278543

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 6389, 19167, 44723, 57501, 108613, 134169, 172503, 325839, 402507, 760291, 977517, 1207521, 2280873, 2932551, 6842619, 20527857]

約数ペア:

[(1, 20527857), (3, 6842619), (7, 2932551), (9, 2280873), (17, 1207521), (21, 977517), (27, 760291), (51, 402507), (63, 325839), (119, 172503), (153, 134169), (189, 108613), (357, 57501), (459, 44723), (1071, 19167), (3213, 6389)]