20994784

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{12379}}^1$

素因数の和:12442

約数の個数: 24

約数和(自身を含む): 42116760

約数和(自身を除く): 21121976

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696, 12379, 24758, 49516, 99032, 198064, 396128, 656087, 1312174, 2624348, 5248696, 10497392, 20994784]

約数ペア:

[(1, 20994784), (2, 10497392), (4, 5248696), (8, 2624348), (16, 1312174), (32, 656087), (53, 396128), (106, 198064), (212, 99032), (424, 49516), (848, 24758), (1696, 12379)]