19889599

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^2$

素因数の和:342

約数の個数: 12

約数和(自身を含む): 21443320

約数和(自身を除く): 1553721

約数列:

[1, 19, 61, 131, 1159, 2489, 7991, 17161, 151829, 326059, 1046821, 19889599]

約数ペア:

[(1, 19889599), (19, 1046821), (61, 326059), (131, 151829), (1159, 17161), (2489, 7991)]