20691275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1123}}^1$

素因数の和:1211

約数の個数: 24

約数和(自身を含む): 28432704

約数和(自身を除く): 7741429

約数列:

[1, 5, 11, 25, 55, 67, 275, 335, 737, 1123, 1675, 3685, 5615, 12353, 18425, 28075, 61765, 75241, 308825, 376205, 827651, 1881025, 4138255, 20691275]

約数ペア:

[(1, 20691275), (5, 4138255), (11, 1881025), (25, 827651), (55, 376205), (67, 308825), (275, 75241), (335, 61765), (737, 28075), (1123, 18425), (1675, 12353), (3685, 5615)]