99081981

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 149846400

約数和(自身を除く): 50764419

約数列:

[1, 3, 9, 27, 109, 131, 257, 327, 393, 771, 981, 1179, 2313, 2943, 3537, 6939, 14279, 28013, 33667, 42837, 84039, 101001, 128511, 252117, 303003, 385533, 756351, 909009, 3669703, 11009109, 33027327, 99081981]

約数ペア:

[(1, 99081981), (3, 33027327), (9, 11009109), (27, 3669703), (109, 909009), (131, 756351), (257, 385533), (327, 303003), (393, 252117), (771, 128511), (981, 101001), (1179, 84039), (2313, 42837), (2943, 33667), (3537, 28013), (6939, 14279)]