21513111

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{6397}}^1$

素因数の和:6478

約数の個数: 16

約数和(自身を含む): 30710400

約数和(自身を除く): 9197289

約数列:

[1, 3, 19, 57, 59, 177, 1121, 3363, 6397, 19191, 121543, 364629, 377423, 1132269, 7171037, 21513111]

約数ペア:

[(1, 21513111), (3, 7171037), (19, 1132269), (57, 377423), (59, 364629), (177, 121543), (1121, 19191), (3363, 6397)]