19751193

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2591}}^1$

素因数の和:2626

約数の個数: 36

約数和(自身を含む): 35852544

約数和(自身を除く): 16101351

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 2591, 7623, 7773, 18137, 23319, 28501, 54411, 85503, 163233, 199507, 256509, 313511, 598521, 940533, 1795563, 2194577, 2821599, 6583731, 19751193]

約数ペア:

[(1, 19751193), (3, 6583731), (7, 2821599), (9, 2194577), (11, 1795563), (21, 940533), (33, 598521), (63, 313511), (77, 256509), (99, 199507), (121, 163233), (231, 85503), (363, 54411), (693, 28501), (847, 23319), (1089, 18137), (2541, 7773), (2591, 7623)]