28896219

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4111}}^1$

素因数の和:4199

約数の個数: 24

約数和(自身を含む): 46185984

約数和(自身を除く): 17289765

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 4111, 7029, 12333, 36999, 45221, 135663, 291881, 406989, 875643, 2626929, 3210691, 9632073, 28896219]

約数ペア:

[(1, 28896219), (3, 9632073), (9, 3210691), (11, 2626929), (33, 875643), (71, 406989), (99, 291881), (213, 135663), (639, 45221), (781, 36999), (2343, 12333), (4111, 7029)]