27958749

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2179}}^1$

素因数の和:2249

約数の個数: 32

約数和(自身を含む): 46878720

約数和(自身を除く): 18919971

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1833, 2179, 4277, 6537, 12831, 15253, 28327, 45759, 84981, 102413, 198289, 307239, 594867, 716891, 1331369, 2150673, 3994107, 9319583, 27958749]

約数ペア:

[(1, 27958749), (3, 9319583), (7, 3994107), (13, 2150673), (21, 1331369), (39, 716891), (47, 594867), (91, 307239), (141, 198289), (273, 102413), (329, 84981), (611, 45759), (987, 28327), (1833, 15253), (2179, 12831), (4277, 6537)]