19895755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 27878400

約数和(自身を除く): 7982645

約数列:

[1, 5, 11, 19, 55, 79, 95, 209, 241, 395, 869, 1045, 1205, 1501, 2651, 4345, 4579, 7505, 13255, 16511, 19039, 22895, 50369, 82555, 95195, 209429, 251845, 361741, 1047145, 1808705, 3979151, 19895755]

約数ペア:

[(1, 19895755), (5, 3979151), (11, 1808705), (19, 1047145), (55, 361741), (79, 251845), (95, 209429), (209, 95195), (241, 82555), (395, 50369), (869, 22895), (1045, 19039), (1205, 16511), (1501, 13255), (2651, 7505), (4345, 4579)]