21489865

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{751}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 26530560

約数和(自身を除く): 5040695

約数列:

[1, 5, 59, 97, 295, 485, 751, 3755, 5723, 28615, 44309, 72847, 221545, 364235, 4297973, 21489865]

約数ペア:

[(1, 21489865), (5, 4297973), (59, 364235), (97, 221545), (295, 72847), (485, 44309), (751, 28615), (3755, 5723)]