20884138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{277}}^1$

素因数の和:462

約数の個数: 32

約数和(自身を含む): 36028800

約数和(自身を除く): 15144662

約数列:

[1, 2, 11, 22, 23, 46, 149, 253, 277, 298, 506, 554, 1639, 3047, 3278, 3427, 6094, 6371, 6854, 12742, 37697, 41273, 70081, 75394, 82546, 140162, 454003, 908006, 949279, 1898558, 10442069, 20884138]

約数ペア:

[(1, 20884138), (2, 10442069), (11, 1898558), (22, 949279), (23, 908006), (46, 454003), (149, 140162), (253, 82546), (277, 75394), (298, 70081), (506, 41273), (554, 37697), (1639, 12742), (3047, 6854), (3278, 6371), (3427, 6094)]