2187081

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:123

約数の個数: 40

約数和(自身を含む): 3686144

約数和(自身を除く): 1499063

約数列:

[1, 3, 9, 13, 27, 31, 39, 67, 81, 93, 117, 201, 279, 351, 403, 603, 837, 871, 1053, 1209, 1809, 2077, 2511, 2613, 3627, 5427, 6231, 7839, 10881, 18693, 23517, 27001, 32643, 56079, 70551, 81003, 168237, 243009, 729027, 2187081]

約数ペア:

[(1, 2187081), (3, 729027), (9, 243009), (13, 168237), (27, 81003), (31, 70551), (39, 56079), (67, 32643), (81, 27001), (93, 23517), (117, 18693), (201, 10881), (279, 7839), (351, 6231), (403, 5427), (603, 3627), (837, 2613), (871, 2511), (1053, 2077), (1209, 1809)]