21713391

素因数分解:

$3^2\times 7^1\times {\mathrm{523}}^1\times {\mathrm{659}}^1$

素因数の和:1195

約数の個数: 24

約数和(自身を含む): 35967360

約数和(自身を除く): 14253969

約数列:

[1, 3, 7, 9, 21, 63, 523, 659, 1569, 1977, 3661, 4613, 4707, 5931, 10983, 13839, 32949, 41517, 344657, 1033971, 2412599, 3101913, 7237797, 21713391]

約数ペア:

[(1, 21713391), (3, 7237797), (7, 3101913), (9, 2412599), (21, 1033971), (63, 344657), (523, 41517), (659, 32949), (1569, 13839), (1977, 10983), (3661, 5931), (4613, 4707)]