19860971

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 22190784

約数和(自身を除く): 2329813

約数列:

[1, 13, 37, 157, 263, 481, 2041, 3419, 5809, 9731, 41291, 75517, 126503, 536783, 1527767, 19860971]

約数ペア:

[(1, 19860971), (13, 1527767), (37, 536783), (157, 126503), (263, 75517), (481, 41291), (2041, 9731), (3419, 5809)]