28013847

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{359}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 40521600

約数和(自身を除く): 12507753

約数列:

[1, 3, 19, 37, 57, 111, 359, 703, 1077, 1369, 2109, 4107, 6821, 13283, 20463, 26011, 39849, 78033, 252377, 491471, 757131, 1474413, 9337949, 28013847]

約数ペア:

[(1, 28013847), (3, 9337949), (19, 1474413), (37, 757131), (57, 491471), (111, 252377), (359, 78033), (703, 39849), (1077, 26011), (1369, 20463), (2109, 13283), (4107, 6821)]