12870819

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{719}}^1$

素因数の和:761

約数の個数: 40

約数和(自身を含む): 21954240

約数和(自身を除く): 9083421

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 719, 1053, 1377, 1989, 2157, 5967, 6471, 9347, 12223, 17901, 19413, 28041, 36669, 58239, 84123, 110007, 158899, 252369, 330021, 476697, 757107, 990063, 1430091, 4290273, 12870819]

約数ペア:

[(1, 12870819), (3, 4290273), (9, 1430091), (13, 990063), (17, 757107), (27, 476697), (39, 330021), (51, 252369), (81, 158899), (117, 110007), (153, 84123), (221, 58239), (351, 36669), (459, 28041), (663, 19413), (719, 17901), (1053, 12223), (1377, 9347), (1989, 6471), (2157, 5967)]