19903702

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{919}}^1$

素因数の和:965

約数の個数: 48

約数和(自身を含む): 39644640

約数和(自身を除く): 19740938

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 49, 91, 98, 119, 182, 221, 238, 442, 637, 833, 919, 1274, 1547, 1666, 1838, 3094, 6433, 10829, 11947, 12866, 15623, 21658, 23894, 31246, 45031, 83629, 90062, 109361, 167258, 203099, 218722, 406198, 585403, 765527, 1170806, 1421693, 1531054, 2843386, 9951851, 19903702]

約数ペア:

[(1, 19903702), (2, 9951851), (7, 2843386), (13, 1531054), (14, 1421693), (17, 1170806), (26, 765527), (34, 585403), (49, 406198), (91, 218722), (98, 203099), (119, 167258), (182, 109361), (221, 90062), (238, 83629), (442, 45031), (637, 31246), (833, 23894), (919, 21658), (1274, 15623), (1547, 12866), (1666, 11947), (1838, 10829), (3094, 6433)]