18763855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 25800768

約数和(自身を除く): 7036913

約数列:

[1, 5, 11, 41, 53, 55, 157, 205, 265, 451, 583, 785, 1727, 2173, 2255, 2915, 6437, 8321, 8635, 10865, 23903, 32185, 41605, 70807, 91531, 119515, 341161, 354035, 457655, 1705805, 3752771, 18763855]

約数ペア:

[(1, 18763855), (5, 3752771), (11, 1705805), (41, 457655), (53, 354035), (55, 341161), (157, 119515), (205, 91531), (265, 70807), (451, 41605), (583, 32185), (785, 23903), (1727, 10865), (2173, 8635), (2255, 8321), (2915, 6437)]