20119707

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:683

約数の個数: 24

約数和(自身を含む): 30317040

約数和(自身を除く): 10197333

約数列:

[1, 3, 9, 29, 87, 157, 261, 471, 491, 1413, 1473, 4419, 4553, 13659, 14239, 40977, 42717, 77087, 128151, 231261, 693783, 2235523, 6706569, 20119707]

約数ペア:

[(1, 20119707), (3, 6706569), (9, 2235523), (29, 693783), (87, 231261), (157, 128151), (261, 77087), (471, 42717), (491, 40977), (1413, 14239), (1473, 13659), (4419, 4553)]