19988944

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{1949}}^1$

素因数の和:2598

約数の個数: 20

約数和(自身を含む): 38808900

約数和(自身を除く): 18819956

約数列:

[1, 2, 4, 8, 16, 641, 1282, 1949, 2564, 3898, 5128, 7796, 10256, 15592, 31184, 1249309, 2498618, 4997236, 9994472, 19988944]

約数ペア:

[(1, 19988944), (2, 9994472), (4, 4997236), (8, 2498618), (16, 1249309), (641, 31184), (1282, 15592), (1949, 10256), (2564, 7796), (3898, 5128)]