19942556

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{1061}}^1$

素因数の和:1229

約数の個数: 24

約数和(自身を含む): 36158976

約数和(自身を除く): 16216420

約数列:

[1, 2, 4, 37, 74, 127, 148, 254, 508, 1061, 2122, 4244, 4699, 9398, 18796, 39257, 78514, 134747, 157028, 269494, 538988, 4985639, 9971278, 19942556]

約数ペア:

[(1, 19942556), (2, 9971278), (4, 4985639), (37, 538988), (74, 269494), (127, 157028), (148, 134747), (254, 78514), (508, 39257), (1061, 18796), (2122, 9398), (4244, 4699)]