81965289

素因数分解:

$3^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{2333}}^1$

素因数の和:2589

約数の個数: 24

約数和(自身を含む): 127716480

約数和(自身を除く): 45751191

約数列:

[1, 3, 7, 21, 49, 147, 239, 717, 1673, 2333, 5019, 6999, 11711, 16331, 35133, 48993, 114317, 342951, 557587, 1672761, 3903109, 11709327, 27321763, 81965289]

約数ペア:

[(1, 81965289), (3, 27321763), (7, 11709327), (21, 3903109), (49, 1672761), (147, 557587), (239, 342951), (717, 114317), (1673, 48993), (2333, 35133), (5019, 16331), (6999, 11711)]