21817244

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1117}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 40382160

約数和(自身を除く): 18564916

約数列:

[1, 2, 4, 19, 38, 76, 257, 514, 1028, 1117, 2234, 4468, 4883, 9766, 19532, 21223, 42446, 84892, 287069, 574138, 1148276, 5454311, 10908622, 21817244]

約数ペア:

[(1, 21817244), (2, 10908622), (4, 5454311), (19, 1148276), (38, 574138), (76, 287069), (257, 84892), (514, 42446), (1028, 21223), (1117, 19532), (2234, 9766), (4468, 4883)]