20043081

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 36

約数和(自身を含む): 31699200

約数和(自身を除く): 11656119

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 199, 279, 361, 589, 597, 1083, 1767, 1791, 3249, 3781, 5301, 6169, 11191, 11343, 18507, 33573, 34029, 55521, 71839, 100719, 117211, 215517, 351633, 646551, 1054899, 2227009, 6681027, 20043081]

約数ペア:

[(1, 20043081), (3, 6681027), (9, 2227009), (19, 1054899), (31, 646551), (57, 351633), (93, 215517), (171, 117211), (199, 100719), (279, 71839), (361, 55521), (589, 34029), (597, 33573), (1083, 18507), (1767, 11343), (1791, 11191), (3249, 6169), (3781, 5301)]