280731

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 16

約数和(自身を含む): 419328

約数和(自身を除く): 138597

約数列:

[1, 3, 11, 33, 47, 141, 181, 517, 543, 1551, 1991, 5973, 8507, 25521, 93577, 280731]

約数ペア:

[(1, 280731), (3, 93577), (11, 25521), (33, 8507), (47, 5973), (141, 1991), (181, 1551), (517, 543)]