19912772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{9629}}^1$

素因数の和:9691

約数の個数: 24

約数和(自身を含む): 38828160

約数和(自身を除く): 18915388

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 9629, 19258, 38516, 105919, 211838, 423676, 452563, 905126, 1810252, 4978193, 9956386, 19912772]

約数ペア:

[(1, 19912772), (2, 9956386), (4, 4978193), (11, 1810252), (22, 905126), (44, 452563), (47, 423676), (94, 211838), (188, 105919), (517, 38516), (1034, 19258), (2068, 9629)]