291222789

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{15787}}^1$

素因数の和:15857

約数の個数: 32

約数和(自身を含む): 466819584

約数和(自身を除く): 175596795

約数列:

[1, 3, 11, 13, 33, 39, 43, 129, 143, 429, 473, 559, 1419, 1677, 6149, 15787, 18447, 47361, 173657, 205231, 520971, 615693, 678841, 2036523, 2257541, 6772623, 7467251, 8824933, 22401753, 26474799, 97074263, 291222789]

約数ペア:

[(1, 291222789), (3, 97074263), (11, 26474799), (13, 22401753), (33, 8824933), (39, 7467251), (43, 6772623), (129, 2257541), (143, 2036523), (429, 678841), (473, 615693), (559, 520971), (1419, 205231), (1677, 173657), (6149, 47361), (15787, 18447)]