28080513

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:307

約数の個数: 40

約数和(自身を含む): 44326656

約数和(自身を除く): 16246143

約数列:

[1, 3, 9, 27, 31, 53, 81, 93, 159, 211, 279, 477, 633, 837, 1431, 1643, 1899, 2511, 4293, 4929, 5697, 6541, 11183, 14787, 17091, 19623, 33549, 44361, 58869, 100647, 133083, 176607, 301941, 346673, 529821, 905823, 1040019, 3120057, 9360171, 28080513]

約数ペア:

[(1, 28080513), (3, 9360171), (9, 3120057), (27, 1040019), (31, 905823), (53, 529821), (81, 346673), (93, 301941), (159, 176607), (211, 133083), (279, 100647), (477, 58869), (633, 44361), (837, 33549), (1431, 19623), (1643, 17091), (1899, 14787), (2511, 11183), (4293, 6541), (4929, 5697)]