19541995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{8263}}^1$

素因数の和:8322

約数の個数: 16

約数和(自身を含む): 26180352

約数和(自身を除く): 6638357

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 8263, 41315, 90893, 355309, 454465, 1776545, 3908399, 19541995]

約数ペア:

[(1, 19541995), (5, 3908399), (11, 1776545), (43, 454465), (55, 355309), (215, 90893), (473, 41315), (2365, 8263)]