28229565

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20681}}^1$

素因数の和:20709

約数の個数: 32

約数和(自身を含む): 55593216

約数和(自身を除く): 27363651

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 20681, 62043, 103405, 144767, 268853, 310215, 434301, 723835, 806559, 1344265, 1881971, 2171505, 4032795, 5645913, 9409855, 28229565]

約数ペア:

[(1, 28229565), (3, 9409855), (5, 5645913), (7, 4032795), (13, 2171505), (15, 1881971), (21, 1344265), (35, 806559), (39, 723835), (65, 434301), (91, 310215), (105, 268853), (195, 144767), (273, 103405), (455, 62043), (1365, 20681)]