28877247

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{3499}}^1$

素因数の和:3643

約数の個数: 24

約数和(自身を含む): 48048000

約数和(自身を除く): 19170753

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2751, 3499, 8253, 10497, 24493, 31491, 73479, 220437, 458369, 1375107, 3208583, 4125321, 9625749, 28877247]

約数ペア:

[(1, 28877247), (3, 9625749), (7, 4125321), (9, 3208583), (21, 1375107), (63, 458369), (131, 220437), (393, 73479), (917, 31491), (1179, 24493), (2751, 10497), (3499, 8253)]