21305616

素因数分解:

$2^4\times 3^1\times {\mathrm{443867}}^1$

素因数の和:443878

約数の個数: 20

約数和(自身を含む): 55039632

約数和(自身を除く): 33734016

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 443867, 887734, 1331601, 1775468, 2663202, 3550936, 5326404, 7101872, 10652808, 21305616]

約数ペア:

[(1, 21305616), (2, 10652808), (3, 7101872), (4, 5326404), (6, 3550936), (8, 2663202), (12, 1775468), (16, 1331601), (24, 887734), (48, 443867)]