19744439

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 32

約数和(自身を含む): 25132800

約数和(自身を除く): 5388361

約数列:

[1, 11, 13, 19, 43, 143, 169, 209, 247, 473, 559, 817, 1859, 2197, 2717, 3211, 6149, 7267, 8987, 10621, 24167, 35321, 41743, 79937, 94471, 116831, 138073, 459173, 1039181, 1518803, 1794949, 19744439]

約数ペア:

[(1, 19744439), (11, 1794949), (13, 1518803), (19, 1039181), (43, 459173), (143, 138073), (169, 116831), (209, 94471), (247, 79937), (473, 41743), (559, 35321), (817, 24167), (1859, 10621), (2197, 8987), (2717, 7267), (3211, 6149)]