21262901

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:724

約数の個数: 16

約数和(自身を含む): 24131520

約数和(自身を除く): 2868619

約数列:

[1, 11, 37, 89, 407, 587, 979, 3293, 6457, 21719, 36223, 52243, 238909, 574673, 1932991, 21262901]

約数ペア:

[(1, 21262901), (11, 1932991), (37, 574673), (89, 238909), (407, 52243), (587, 36223), (979, 21719), (3293, 6457)]