21553543

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{367}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 24906240

約数和(自身を除く): 3352697

約数列:

[1, 11, 19, 209, 281, 367, 3091, 4037, 5339, 6973, 58729, 76703, 103127, 1134397, 1959413, 21553543]

約数ペア:

[(1, 21553543), (11, 1959413), (19, 1134397), (209, 103127), (281, 76703), (367, 58729), (3091, 6973), (4037, 5339)]