81689778

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{238859}}^1$

素因数の和:238886

約数の個数: 24

約数和(自身を含む): 186310800

約数和(自身を除く): 104621022

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 238859, 477718, 716577, 1433154, 2149731, 4299462, 4538321, 9076642, 13614963, 27229926, 40844889, 81689778]

約数ペア:

[(1, 81689778), (2, 40844889), (3, 27229926), (6, 13614963), (9, 9076642), (18, 4538321), (19, 4299462), (38, 2149731), (57, 1433154), (114, 716577), (171, 477718), (342, 238859)]