20849205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3449}}^1$

素因数の和:3501

約数の個数: 32

約数和(自身を含む): 37094400

約数和(自身を除く): 16245195

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 3449, 6045, 10347, 17245, 44837, 51735, 106919, 134511, 224185, 320757, 534595, 672555, 1389947, 1603785, 4169841, 6949735, 20849205]

約数ペア:

[(1, 20849205), (3, 6949735), (5, 4169841), (13, 1603785), (15, 1389947), (31, 672555), (39, 534595), (65, 320757), (93, 224185), (155, 134511), (195, 106919), (403, 51735), (465, 44837), (1209, 17245), (2015, 10347), (3449, 6045)]