199419913

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{112603}}^1$

素因数の和:112644

約数の個数: 16

約数和(自身を含む): 259439616

約数和(自身を除く): 60019703

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 112603, 788221, 1238633, 2589869, 8670431, 18129083, 28488559, 199419913]

約数ペア:

[(1, 199419913), (7, 28488559), (11, 18129083), (23, 8670431), (77, 2589869), (161, 1238633), (253, 788221), (1771, 112603)]