19957796

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{2311}}^1$

素因数の和:2459

約数の個数: 24

約数和(自身を含む): 37287936

約数和(自身を除く): 17330140

約数列:

[1, 2, 4, 17, 34, 68, 127, 254, 508, 2159, 2311, 4318, 4622, 8636, 9244, 39287, 78574, 157148, 293497, 586994, 1173988, 4989449, 9978898, 19957796]

約数ペア:

[(1, 19957796), (2, 9978898), (4, 4989449), (17, 1173988), (34, 586994), (68, 293497), (127, 157148), (254, 78574), (508, 39287), (2159, 9244), (2311, 8636), (4318, 4622)]