20618406

素因数分解:

$2^1\times 3^2\times {\mathrm{641}}^1\times {\mathrm{1787}}^1$

素因数の和:2436

約数の個数: 24

約数和(自身を含む): 44767944

約数和(自身を除く): 24149538

約数列:

[1, 2, 3, 6, 9, 18, 641, 1282, 1787, 1923, 3574, 3846, 5361, 5769, 10722, 11538, 16083, 32166, 1145467, 2290934, 3436401, 6872802, 10309203, 20618406]

約数ペア:

[(1, 20618406), (2, 10309203), (3, 6872802), (6, 3436401), (9, 2290934), (18, 1145467), (641, 32166), (1282, 16083), (1787, 11538), (1923, 10722), (3574, 5769), (3846, 5361)]