20808724

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{2423}}^1$

素因数の和:2559

約数の個数: 24

約数和(自身を含む): 38687040

約数和(自身を除く): 17878316

約数列:

[1, 2, 4, 19, 38, 76, 113, 226, 452, 2147, 2423, 4294, 4846, 8588, 9692, 46037, 92074, 184148, 273799, 547598, 1095196, 5202181, 10404362, 20808724]

約数ペア:

[(1, 20808724), (2, 10404362), (4, 5202181), (19, 1095196), (38, 547598), (76, 273799), (113, 184148), (226, 92074), (452, 46037), (2147, 9692), (2423, 8588), (4294, 4846)]