80971191

素因数分解:

$3^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1667}}^1$

素因数の和:1940

約数の個数: 32

約数和(自身を含む): 137710080

約数和(自身を除く): 56738889

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 257, 771, 1667, 1799, 2313, 5001, 5397, 6939, 11669, 15003, 16191, 35007, 45009, 48573, 105021, 315063, 428419, 1285257, 2998933, 3855771, 8996799, 11567313, 26990397, 80971191]

約数ペア:

[(1, 80971191), (3, 26990397), (7, 11567313), (9, 8996799), (21, 3855771), (27, 2998933), (63, 1285257), (189, 428419), (257, 315063), (771, 105021), (1667, 48573), (1799, 45009), (2313, 35007), (5001, 16191), (5397, 15003), (6939, 11669)]