213169887

素因数分解:

$3^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4759}}^1$

素因数の和:4857

約数の個数: 40

約数和(自身を含む): 368614400

約数和(自身を除く): 155444513

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 81, 189, 237, 553, 567, 711, 1659, 2133, 4759, 4977, 6399, 14277, 14931, 33313, 42831, 44793, 99939, 128493, 299817, 375961, 385479, 899451, 1127883, 2631727, 2698353, 3383649, 7895181, 10150947, 23685543, 30452841, 71056629, 213169887]

約数ペア:

[(1, 213169887), (3, 71056629), (7, 30452841), (9, 23685543), (21, 10150947), (27, 7895181), (63, 3383649), (79, 2698353), (81, 2631727), (189, 1127883), (237, 899451), (553, 385479), (567, 375961), (711, 299817), (1659, 128493), (2133, 99939), (4759, 44793), (4977, 42831), (6399, 33313), (14277, 14931)]