291431331

素因数分解:

$3^3\times {\mathrm{251}}^1\times {\mathrm{43003}}^1$

素因数の和:43263

約数の個数: 16

約数和(自身を含む): 433480320

約数和(自身を除く): 142048989

約数列:

[1, 3, 9, 27, 251, 753, 2259, 6777, 43003, 129009, 387027, 1161081, 10793753, 32381259, 97143777, 291431331]

約数ペア:

[(1, 291431331), (3, 97143777), (9, 32381259), (27, 10793753), (251, 1161081), (753, 387027), (2259, 129009), (6777, 43003)]