28385487

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^2$

素因数の和:264

約数の個数: 36

約数和(自身を含む): 46894120

約数和(自身を除く): 18508633

約数列:

[1, 3, 9, 13, 19, 39, 57, 113, 117, 171, 247, 339, 741, 1017, 1469, 2147, 2223, 4407, 6441, 12769, 13221, 19323, 27911, 38307, 83733, 114921, 165997, 242611, 251199, 497991, 727833, 1493973, 2183499, 3153943, 9461829, 28385487]

約数ペア:

[(1, 28385487), (3, 9461829), (9, 3153943), (13, 2183499), (19, 1493973), (39, 727833), (57, 497991), (113, 251199), (117, 242611), (171, 165997), (247, 114921), (339, 83733), (741, 38307), (1017, 27911), (1469, 19323), (2147, 13221), (2223, 12769), (4407, 6441)]