20500981

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1091}}^1$

素因数の和:1176

約数の個数: 16

約数和(自身を含む): 23063040

約数和(自身を除く): 2562059

約数列:

[1, 19, 23, 43, 437, 817, 989, 1091, 18791, 20729, 25093, 46913, 476767, 891347, 1078999, 20500981]

約数ペア:

[(1, 20500981), (19, 1078999), (23, 891347), (43, 476767), (437, 46913), (817, 25093), (989, 20729), (1091, 18791)]