20398419

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2339}}^1$

素因数の和:2384

約数の個数: 32

約数和(自身を含む): 33696000

約数和(自身を除く): 13297581

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 153, 171, 323, 459, 513, 969, 2339, 2907, 7017, 8721, 21051, 39763, 44441, 63153, 119289, 133323, 357867, 399969, 755497, 1073601, 1199907, 2266491, 6799473, 20398419]

約数ペア:

[(1, 20398419), (3, 6799473), (9, 2266491), (17, 1199907), (19, 1073601), (27, 755497), (51, 399969), (57, 357867), (153, 133323), (171, 119289), (323, 63153), (459, 44441), (513, 39763), (969, 21051), (2339, 8721), (2907, 7017)]