19895566

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:268

約数の個数: 32

約数和(自身を含む): 32394240

約数和(自身を除く): 12498674

約数列:

[1, 2, 29, 37, 58, 73, 74, 127, 146, 254, 1073, 2117, 2146, 2701, 3683, 4234, 4699, 5402, 7366, 9271, 9398, 18542, 78329, 136271, 156658, 268859, 272542, 343027, 537718, 686054, 9947783, 19895566]

約数ペア:

[(1, 19895566), (2, 9947783), (29, 686054), (37, 537718), (58, 343027), (73, 272542), (74, 268859), (127, 156658), (146, 136271), (254, 78329), (1073, 18542), (2117, 9398), (2146, 9271), (2701, 7366), (3683, 5402), (4234, 4699)]