21235225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2087}}^1$

素因数の和:2145

約数の個数: 24

約数和(自身を含む): 29515968

約数和(自身を除く): 8280743

約数列:

[1, 5, 11, 25, 37, 55, 185, 275, 407, 925, 2035, 2087, 10175, 10435, 22957, 52175, 77219, 114785, 386095, 573925, 849409, 1930475, 4247045, 21235225]

約数ペア:

[(1, 21235225), (5, 4247045), (11, 1930475), (25, 849409), (37, 573925), (55, 386095), (185, 114785), (275, 77219), (407, 52175), (925, 22957), (2035, 10435), (2087, 10175)]