206739

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:72

約数の個数: 32

約数和(自身を含む): 358400

約数和(自身を除く): 151661

約数列:

[1, 3, 9, 13, 19, 27, 31, 39, 57, 93, 117, 171, 247, 279, 351, 403, 513, 589, 741, 837, 1209, 1767, 2223, 3627, 5301, 6669, 7657, 10881, 15903, 22971, 68913, 206739]

約数ペア:

[(1, 206739), (3, 68913), (9, 22971), (13, 15903), (19, 10881), (27, 7657), (31, 6669), (39, 5301), (57, 3627), (93, 2223), (117, 1767), (171, 1209), (247, 837), (279, 741), (351, 589), (403, 513)]