239870781

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{1051}}^1$

素因数の和:1246

約数の個数: 32

約数和(自身を含む): 363571200

約数和(自身を除く): 123700419

約数列:

[1, 3, 9, 27, 79, 107, 237, 321, 711, 963, 1051, 2133, 2889, 3153, 8453, 9459, 25359, 28377, 76077, 83029, 112457, 228231, 249087, 337371, 747261, 1012113, 2241783, 3036339, 8884103, 26652309, 79956927, 239870781]

約数ペア:

[(1, 239870781), (3, 79956927), (9, 26652309), (27, 8884103), (79, 3036339), (107, 2241783), (237, 1012113), (321, 747261), (711, 337371), (963, 249087), (1051, 228231), (2133, 112457), (2889, 83029), (3153, 76077), (8453, 28377), (9459, 25359)]