19918156

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1913}}^1$

素因数の和:2073

約数の個数: 24

約数和(自身を含む): 36978480

約数和(自身を除く): 17060324

約数列:

[1, 2, 4, 19, 38, 76, 137, 274, 548, 1913, 2603, 3826, 5206, 7652, 10412, 36347, 72694, 145388, 262081, 524162, 1048324, 4979539, 9959078, 19918156]

約数ペア:

[(1, 19918156), (2, 9959078), (4, 4979539), (19, 1048324), (38, 524162), (76, 262081), (137, 145388), (274, 72694), (548, 36347), (1913, 10412), (2603, 7652), (3826, 5206)]