18887368

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{907}}^1$

素因数の和:1069

約数の個数: 32

約数和(自身を含む): 37591200

約数和(自身を除く): 18703832

約数列:

[1, 2, 4, 8, 19, 38, 76, 137, 152, 274, 548, 907, 1096, 1814, 2603, 3628, 5206, 7256, 10412, 17233, 20824, 34466, 68932, 124259, 137864, 248518, 497036, 994072, 2360921, 4721842, 9443684, 18887368]

約数ペア:

[(1, 18887368), (2, 9443684), (4, 4721842), (8, 2360921), (19, 994072), (38, 497036), (76, 248518), (137, 137864), (152, 124259), (274, 68932), (548, 34466), (907, 20824), (1096, 17233), (1814, 10412), (2603, 7256), (3628, 5206)]