28956447

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 47201616

約数和(自身を除く): 18245169

約数列:

[1, 3, 9, 13, 27, 39, 81, 107, 117, 257, 321, 351, 771, 963, 1053, 1391, 2313, 2889, 3341, 4173, 6939, 8667, 10023, 12519, 20817, 27499, 30069, 37557, 82497, 90207, 112671, 247491, 270621, 357487, 742473, 1072461, 2227419, 3217383, 9652149, 28956447]

約数ペア:

[(1, 28956447), (3, 9652149), (9, 3217383), (13, 2227419), (27, 1072461), (39, 742473), (81, 357487), (107, 270621), (117, 247491), (257, 112671), (321, 90207), (351, 82497), (771, 37557), (963, 30069), (1053, 27499), (1391, 20817), (2313, 12519), (2889, 10023), (3341, 8667), (4173, 6939)]