28874493

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{619}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 42943680

約数和(自身を除く): 14069187

約数列:

[1, 3, 9, 71, 73, 213, 219, 619, 639, 657, 1857, 5183, 5571, 15549, 43949, 45187, 46647, 131847, 135561, 395541, 406683, 3208277, 9624831, 28874493]

約数ペア:

[(1, 28874493), (3, 9624831), (9, 3208277), (71, 406683), (73, 395541), (213, 135561), (219, 131847), (619, 46647), (639, 45187), (657, 43949), (1857, 15549), (5183, 5571)]