28247721

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1\times {\mathrm{491}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 38289408

約数和(自身を除く): 10041687

約数列:

[1, 3, 127, 151, 381, 453, 491, 1473, 19177, 57531, 62357, 74141, 187071, 222423, 9415907, 28247721]

約数ペア:

[(1, 28247721), (3, 9415907), (127, 222423), (151, 187071), (381, 74141), (453, 62357), (491, 57531), (1473, 19177)]