19980899

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 21954240

約数和(自身を除く): 1973341

約数列:

[1, 17, 41, 109, 263, 697, 1853, 4469, 4471, 10783, 28667, 75973, 183311, 487339, 1175347, 19980899]

約数ペア:

[(1, 19980899), (17, 1175347), (41, 487339), (109, 183311), (263, 75973), (697, 28667), (1853, 10783), (4469, 4471)]