20747221

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1873}}^1$

素因数の和:1956

約数の個数: 16

約数和(自身を含む): 24287040

約数和(自身を除く): 3539819

約数列:

[1, 11, 19, 53, 209, 583, 1007, 1873, 11077, 20603, 35587, 99269, 391457, 1091959, 1886111, 20747221]

約数ペア:

[(1, 20747221), (11, 1886111), (19, 1091959), (53, 391457), (209, 99269), (583, 35587), (1007, 20603), (1873, 11077)]