19907195

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1783}}^1$

素因数の和:1835

約数の個数: 32

約数和(自身を含む): 30827520

約数和(自身を除く): 10920325

約数列:

[1, 5, 7, 11, 29, 35, 55, 77, 145, 203, 319, 385, 1015, 1595, 1783, 2233, 8915, 11165, 12481, 19613, 51707, 62405, 98065, 137291, 258535, 361949, 568777, 686455, 1809745, 2843885, 3981439, 19907195]

約数ペア:

[(1, 19907195), (5, 3981439), (7, 2843885), (11, 1809745), (29, 686455), (35, 568777), (55, 361949), (77, 258535), (145, 137291), (203, 98065), (319, 62405), (385, 51707), (1015, 19613), (1595, 12481), (1783, 11165), (2233, 8915)]