19229815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 26459136

約数和(自身を除く): 7229321

約数列:

[1, 5, 11, 43, 47, 55, 173, 215, 235, 473, 517, 865, 1903, 2021, 2365, 2585, 7439, 8131, 9515, 10105, 22231, 37195, 40655, 81829, 89441, 111155, 349633, 409145, 447205, 1748165, 3845963, 19229815]

約数ペア:

[(1, 19229815), (5, 3845963), (11, 1748165), (43, 447205), (47, 409145), (55, 349633), (173, 111155), (215, 89441), (235, 81829), (473, 40655), (517, 37195), (865, 22231), (1903, 10105), (2021, 9515), (2365, 8131), (2585, 7439)]