18986776

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5431}}^1$

素因数の和:5479

約数の個数: 32

約数和(自身を含む): 39110400

約数和(自身を除く): 20123624

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 152, 184, 437, 874, 1748, 3496, 5431, 10862, 21724, 43448, 103189, 124913, 206378, 249826, 412756, 499652, 825512, 999304, 2373347, 4746694, 9493388, 18986776]

約数ペア:

[(1, 18986776), (2, 9493388), (4, 4746694), (8, 2373347), (19, 999304), (23, 825512), (38, 499652), (46, 412756), (76, 249826), (92, 206378), (152, 124913), (184, 103189), (437, 43448), (874, 21724), (1748, 10862), (3496, 5431)]