21862017

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3323}}^1$

素因数の和:3389

約数の個数: 24

約数和(自身を含む): 34223904

約数和(自身を除く): 12361887

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 3323, 6579, 9969, 29907, 56491, 142889, 169473, 428667, 508419, 1286001, 2429113, 7287339, 21862017]

約数ペア:

[(1, 21862017), (3, 7287339), (9, 2429113), (17, 1286001), (43, 508419), (51, 428667), (129, 169473), (153, 142889), (387, 56491), (731, 29907), (2193, 9969), (3323, 6579)]