19661778

素因数分解:

$2^1\times 3^4\times {\mathrm{121369}}^1$

素因数の和:121383

約数の個数: 20

約数和(自身を含む): 44057310

約数和(自身を除く): 24395532

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 121369, 242738, 364107, 728214, 1092321, 2184642, 3276963, 6553926, 9830889, 19661778]

約数ペア:

[(1, 19661778), (2, 9830889), (3, 6553926), (6, 3276963), (9, 2184642), (18, 1092321), (27, 728214), (54, 364107), (81, 242738), (162, 121369)]