21390391

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{1433}}^1$

素因数の和:1526

約数の個数: 16

約数和(自身を含む): 24779520

約数和(自身を除く): 3389129

約数列:

[1, 11, 23, 59, 253, 649, 1357, 1433, 14927, 15763, 32959, 84547, 362549, 930017, 1944581, 21390391]

約数ペア:

[(1, 21390391), (11, 1944581), (23, 930017), (59, 362549), (253, 84547), (649, 32959), (1357, 15763), (1433, 14927)]