28909143

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:469

約数の個数: 40

約数和(自身を含む): 46231680

約数和(自身を除く): 17322537

約数列:

[1, 3, 9, 27, 29, 31, 81, 87, 93, 261, 279, 397, 783, 837, 899, 1191, 2349, 2511, 2697, 3573, 8091, 10719, 11513, 12307, 24273, 32157, 34539, 36921, 72819, 103617, 110763, 310851, 332289, 356903, 932553, 996867, 1070709, 3212127, 9636381, 28909143]

約数ペア:

[(1, 28909143), (3, 9636381), (9, 3212127), (27, 1070709), (29, 996867), (31, 932553), (81, 356903), (87, 332289), (93, 310851), (261, 110763), (279, 103617), (397, 72819), (783, 36921), (837, 34539), (899, 32157), (1191, 24273), (2349, 12307), (2511, 11513), (2697, 10719), (3573, 8091)]