20887928

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{761}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 40599360

約数和(自身を除く): 19711432

約数列:

[1, 2, 4, 8, 47, 73, 94, 146, 188, 292, 376, 584, 761, 1522, 3044, 3431, 6088, 6862, 13724, 27448, 35767, 55553, 71534, 111106, 143068, 222212, 286136, 444424, 2610991, 5221982, 10443964, 20887928]

約数ペア:

[(1, 20887928), (2, 10443964), (4, 5221982), (8, 2610991), (47, 444424), (73, 286136), (94, 222212), (146, 143068), (188, 111106), (292, 71534), (376, 55553), (584, 35767), (761, 27448), (1522, 13724), (3044, 6862), (3431, 6088)]