21360269

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{757}}^1$

素因数の和:932

約数の個数: 16

約数和(自身を含む): 25468800

約数和(自身を除く): 4108531

約数列:

[1, 7, 29, 139, 203, 757, 973, 4031, 5299, 21953, 28217, 105223, 153671, 736561, 3051467, 21360269]

約数ペア:

[(1, 21360269), (7, 3051467), (29, 736561), (139, 153671), (203, 105223), (757, 28217), (973, 21953), (4031, 5299)]