28124239

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{503}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 8454065

約数列:

[1, 11, 13, 17, 23, 143, 187, 221, 253, 299, 391, 503, 2431, 3289, 4301, 5083, 5533, 6539, 8551, 11569, 55913, 71929, 94061, 111163, 127259, 150397, 196673, 1222793, 1654367, 2163403, 2556749, 28124239]

約数ペア:

[(1, 28124239), (11, 2556749), (13, 2163403), (17, 1654367), (23, 1222793), (143, 196673), (187, 150397), (221, 127259), (253, 111163), (299, 94061), (391, 71929), (503, 55913), (2431, 11569), (3289, 8551), (4301, 6539), (5083, 5533)]