19696901

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 25436160

約数和(自身を除く): 5739259

約数列:

[1, 7, 19, 23, 47, 133, 137, 161, 329, 437, 893, 959, 1081, 2603, 3059, 3151, 6251, 6439, 7567, 18221, 20539, 22057, 45073, 59869, 122341, 143773, 148097, 419083, 856387, 1036679, 2813843, 19696901]

約数ペア:

[(1, 19696901), (7, 2813843), (19, 1036679), (23, 856387), (47, 419083), (133, 148097), (137, 143773), (161, 122341), (329, 59869), (437, 45073), (893, 22057), (959, 20539), (1081, 18221), (2603, 7567), (3059, 6439), (3151, 6251)]