21057534

素因数分解:

$2^1\times 3^2\times {\mathrm{691}}^1\times {\mathrm{1693}}^1$

素因数の和:2392

約数の個数: 24

約数和(自身を含む): 45717672

約数和(自身を除く): 24660138

約数列:

[1, 2, 3, 6, 9, 18, 691, 1382, 1693, 2073, 3386, 4146, 5079, 6219, 10158, 12438, 15237, 30474, 1169863, 2339726, 3509589, 7019178, 10528767, 21057534]

約数ペア:

[(1, 21057534), (2, 10528767), (3, 7019178), (6, 3509589), (9, 2339726), (18, 1169863), (691, 30474), (1382, 15237), (1693, 12438), (2073, 10158), (3386, 6219), (4146, 5079)]