19857974

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{2113}}^1$

素因数の和:2279

約数の個数: 16

約数和(自身を含む): 30847488

約数和(自身を除く): 10989514

約数列:

[1, 2, 37, 74, 127, 254, 2113, 4226, 4699, 9398, 78181, 156362, 268351, 536702, 9928987, 19857974]

約数ペア:

[(1, 19857974), (2, 9928987), (37, 536702), (74, 268351), (127, 156362), (254, 78181), (2113, 9398), (4226, 4699)]