19220279

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1289}}^1$

素因数の和:1370

約数の個数: 16

約数和(自身を含む): 21960960

約数和(自身を除く): 2740681

約数列:

[1, 13, 31, 37, 403, 481, 1147, 1289, 14911, 16757, 39959, 47693, 519467, 620009, 1478483, 19220279]

約数ペア:

[(1, 19220279), (13, 1478483), (31, 620009), (37, 519467), (403, 47693), (481, 39959), (1147, 16757), (1289, 14911)]