28641795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20983}}^1$

素因数の和:21011

約数の個数: 32

約数和(自身を含む): 56404992

約数和(自身を除く): 27763197

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 20983, 62949, 104915, 146881, 272779, 314745, 440643, 734405, 818337, 1363895, 1909453, 2203215, 4091685, 5728359, 9547265, 28641795]

約数ペア:

[(1, 28641795), (3, 9547265), (5, 5728359), (7, 4091685), (13, 2203215), (15, 1909453), (21, 1363895), (35, 818337), (39, 734405), (65, 440643), (91, 314745), (105, 272779), (195, 146881), (273, 104915), (455, 62949), (1365, 20983)]