20651787

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3461}}^1$

素因数の和:3500

約数の個数: 32

約数和(自身を含む): 34896960

約数和(自身を除く): 14245173

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 351, 459, 663, 1989, 3461, 5967, 10383, 31149, 44993, 58837, 93447, 134979, 176511, 404937, 529533, 764881, 1214811, 1588599, 2294643, 6883929, 20651787]

約数ペア:

[(1, 20651787), (3, 6883929), (9, 2294643), (13, 1588599), (17, 1214811), (27, 764881), (39, 529533), (51, 404937), (117, 176511), (153, 134979), (221, 93447), (351, 58837), (459, 44993), (663, 31149), (1989, 10383), (3461, 5967)]