213207621

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{42787}}^1$

素因数の和:42952

約数の個数: 16

約数和(自身を含む): 312181248

約数和(自身を除く): 98973627

約数列:

[1, 3, 11, 33, 151, 453, 1661, 4983, 42787, 128361, 470657, 1411971, 6460837, 19382511, 71069207, 213207621]

約数ペア:

[(1, 213207621), (3, 71069207), (11, 19382511), (33, 6460837), (151, 1411971), (453, 470657), (1661, 128361), (4983, 42787)]