20957612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13001}}^1$

素因数の和:13049

約数の個数: 24

約数和(自身を含む): 40774272

約数和(自身を除く): 19816660

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13001, 26002, 52004, 169013, 338026, 403031, 676052, 806062, 1612124, 5239403, 10478806, 20957612]

約数ペア:

[(1, 20957612), (2, 10478806), (4, 5239403), (13, 1612124), (26, 806062), (31, 676052), (52, 403031), (62, 338026), (124, 169013), (403, 52004), (806, 26002), (1612, 13001)]