131561563

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{461}}^1\times {\mathrm{691}}^1$

素因数の和:1218

約数の個数: 16

約数和(自身を含む): 153457920

約数和(自身を除く): 21896357

約数列:

[1, 7, 59, 413, 461, 691, 3227, 4837, 27199, 40769, 190393, 285383, 318551, 2229857, 18794509, 131561563]

約数ペア:

[(1, 131561563), (7, 18794509), (59, 2229857), (413, 318551), (461, 285383), (691, 190393), (3227, 40769), (4837, 27199)]