20575009007

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{25321}}^1$

素因数の和:25468

約数の個数: 32

約数和(自身を含む): 25281484800

約数和(自身を除く): 4706475793

約数列:

[1, 7, 23, 49, 103, 161, 343, 721, 1127, 2369, 5047, 7889, 16583, 25321, 35329, 116081, 177247, 582383, 812567, 1240729, 2608063, 4076681, 8685103, 18256441, 28536767, 59985449, 127795087, 199757369, 419898143, 894565609, 2939287001, 20575009007]

約数ペア:

[(1, 20575009007), (7, 2939287001), (23, 894565609), (49, 419898143), (103, 199757369), (161, 127795087), (343, 59985449), (721, 28536767), (1127, 18256441), (2369, 8685103), (5047, 4076681), (7889, 2608063), (16583, 1240729), (25321, 812567), (35329, 582383), (116081, 177247)]