21625173

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 35830080

約数和(自身を除く): 14204907

約数列:

[1, 3, 9, 17, 19, 43, 51, 57, 129, 153, 171, 173, 323, 387, 519, 731, 817, 969, 1557, 2193, 2451, 2907, 2941, 3287, 6579, 7353, 7439, 8823, 9861, 13889, 22317, 26469, 29583, 41667, 55879, 66951, 125001, 126463, 141341, 167637, 379389, 424023, 502911, 1138167, 1272069, 2402797, 7208391, 21625173]

約数ペア:

[(1, 21625173), (3, 7208391), (9, 2402797), (17, 1272069), (19, 1138167), (43, 502911), (51, 424023), (57, 379389), (129, 167637), (153, 141341), (171, 126463), (173, 125001), (323, 66951), (387, 55879), (519, 41667), (731, 29583), (817, 26469), (969, 22317), (1557, 13889), (2193, 9861), (2451, 8823), (2907, 7439), (2941, 7353), (3287, 6579)]