18989216

素因数分解:

$2^5\times {\mathrm{257}}^1\times {\mathrm{2309}}^1$

素因数の和:2576

約数の個数: 24

約数和(自身を含む): 37546740

約数和(自身を除く): 18557524

約数列:

[1, 2, 4, 8, 16, 32, 257, 514, 1028, 2056, 2309, 4112, 4618, 8224, 9236, 18472, 36944, 73888, 593413, 1186826, 2373652, 4747304, 9494608, 18989216]

約数ペア:

[(1, 18989216), (2, 9494608), (4, 4747304), (8, 2373652), (16, 1186826), (32, 593413), (257, 73888), (514, 36944), (1028, 18472), (2056, 9236), (2309, 8224), (4112, 4618)]