19888055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 27743040

約数和(自身を除く): 7854985

約数列:

[1, 5, 11, 29, 37, 55, 145, 185, 319, 337, 407, 1073, 1595, 1685, 2035, 3707, 5365, 9773, 11803, 12469, 18535, 48865, 59015, 62345, 107503, 137159, 361601, 537515, 685795, 1808005, 3977611, 19888055]

約数ペア:

[(1, 19888055), (5, 3977611), (11, 1808005), (29, 685795), (37, 537515), (55, 361601), (145, 137159), (185, 107503), (319, 62345), (337, 59015), (407, 48865), (1073, 18535), (1595, 12469), (1685, 11803), (2035, 9773), (3707, 5365)]