19888453

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2964

約数の個数: 16

約数和(自身を含む): 23417856

約数和(自身を除く): 3529403

約数列:

[1, 13, 17, 31, 221, 403, 527, 2903, 6851, 37739, 49351, 89993, 641563, 1169909, 1529881, 19888453]

約数ペア:

[(1, 19888453), (13, 1529881), (17, 1169909), (31, 641563), (221, 89993), (403, 49351), (527, 37739), (2903, 6851)]