28708821

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2393}}^1$

素因数の和:2473

約数の個数: 24

約数和(自身を含む): 43819776

約数和(自身を除く): 15110955

約数列:

[1, 3, 9, 31, 43, 93, 129, 279, 387, 1333, 2393, 3999, 7179, 11997, 21537, 74183, 102899, 222549, 308697, 667647, 926091, 3189869, 9569607, 28708821]

約数ペア:

[(1, 28708821), (3, 9569607), (9, 3189869), (31, 926091), (43, 667647), (93, 308697), (129, 222549), (279, 102899), (387, 74183), (1333, 21537), (2393, 11997), (3999, 7179)]