81781143

素因数分解:

$3^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1\times {\mathrm{433}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 110263776

約数和(自身を除く): 28482633

約数列:

[1, 3, 157, 401, 433, 471, 1203, 1299, 62957, 67981, 173633, 188871, 203943, 520899, 27260381, 81781143]

約数ペア:

[(1, 81781143), (3, 27260381), (157, 520899), (401, 203943), (433, 188871), (471, 173633), (1203, 67981), (1299, 62957)]