20138041

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 26707968

約数和(自身を除く): 6569927

約数列:

[1, 7, 11, 23, 77, 83, 137, 161, 253, 581, 913, 959, 1507, 1771, 1909, 3151, 6391, 10549, 11371, 13363, 20999, 22057, 34661, 79597, 125081, 146993, 242627, 261533, 875567, 1830731, 2876863, 20138041]

約数ペア:

[(1, 20138041), (7, 2876863), (11, 1830731), (23, 875567), (77, 261533), (83, 242627), (137, 146993), (161, 125081), (253, 79597), (581, 34661), (913, 22057), (959, 20999), (1507, 13363), (1771, 11371), (1909, 10549), (3151, 6391)]