28581267

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3919}}^1$

素因数の和:3963

約数の個数: 32

約数和(自身を含む): 47416320

約数和(自身を除く): 18835053

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 3919, 7293, 11757, 43109, 50947, 66623, 129327, 152841, 199869, 560417, 732853, 866099, 1681251, 2198559, 2598297, 9527089, 28581267]

約数ペア:

[(1, 28581267), (3, 9527089), (11, 2598297), (13, 2198559), (17, 1681251), (33, 866099), (39, 732853), (51, 560417), (143, 199869), (187, 152841), (221, 129327), (429, 66623), (561, 50947), (663, 43109), (2431, 11757), (3919, 7293)]