81169767

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 146450304

約数和(自身を除く): 65280537

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 63, 83, 129, 133, 171, 249, 301, 361, 387, 399, 581, 747, 817, 903, 1083, 1197, 1577, 1743, 2451, 2527, 2709, 3249, 3569, 4731, 5229, 5719, 7353, 7581, 10707, 11039, 14193, 15523, 17157, 22743, 24983, 29963, 32121, 33117, 46569, 51471, 67811, 74949, 89889, 99351, 108661, 139707, 203433, 209741, 224847, 269667, 325983, 474677, 610299, 629223, 977949, 1288409, 1424031, 1887669, 3865227, 4272093, 9018863, 11595681, 27056589, 81169767]

約数ペア:

[(1, 81169767), (3, 27056589), (7, 11595681), (9, 9018863), (19, 4272093), (21, 3865227), (43, 1887669), (57, 1424031), (63, 1288409), (83, 977949), (129, 629223), (133, 610299), (171, 474677), (249, 325983), (301, 269667), (361, 224847), (387, 209741), (399, 203433), (581, 139707), (747, 108661), (817, 99351), (903, 89889), (1083, 74949), (1197, 67811), (1577, 51471), (1743, 46569), (2451, 33117), (2527, 32121), (2709, 29963), (3249, 24983), (3569, 22743), (4731, 17157), (5229, 15523), (5719, 14193), (7353, 11039), (7581, 10707)]