18997169

素因数分解:

${\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 20921280

約数和(自身を除く): 1924111

約数列:

[1, 19, 37, 61, 443, 703, 1159, 2257, 8417, 16391, 27023, 42883, 311429, 513437, 999851, 18997169]

約数ペア:

[(1, 18997169), (19, 999851), (37, 513437), (61, 311429), (443, 42883), (703, 27023), (1159, 16391), (2257, 8417)]