81999639

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{1669}}^1$

素因数の和:1831

約数の個数: 24

約数和(自身を含む): 121923360

約数和(自身を除く): 39923721

約数列:

[1, 3, 9, 53, 103, 159, 309, 477, 927, 1669, 5007, 5459, 15021, 16377, 49131, 88457, 171907, 265371, 515721, 796113, 1547163, 9111071, 27333213, 81999639]

約数ペア:

[(1, 81999639), (3, 27333213), (9, 9111071), (53, 1547163), (103, 796113), (159, 515721), (309, 265371), (477, 171907), (927, 88457), (1669, 49131), (5007, 16377), (5459, 15021)]