203940891

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2473}}^1$

素因数の和:2521

約数の個数: 72

約数和(自身を含む): 395978544

約数和(自身を除く): 192037653

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 49, 51, 63, 77, 99, 119, 147, 153, 187, 231, 357, 441, 539, 561, 693, 833, 1071, 1309, 1617, 1683, 2473, 2499, 3927, 4851, 7419, 7497, 9163, 11781, 17311, 22257, 27203, 27489, 42041, 51933, 81609, 82467, 121177, 126123, 155799, 190421, 244827, 294287, 363531, 378369, 462451, 571263, 882861, 1090593, 1332947, 1387353, 1713789, 2060009, 2648583, 3237157, 3998841, 4162059, 6180027, 9711471, 11996523, 18540081, 22660099, 29134413, 67980297, 203940891]

約数ペア:

[(1, 203940891), (3, 67980297), (7, 29134413), (9, 22660099), (11, 18540081), (17, 11996523), (21, 9711471), (33, 6180027), (49, 4162059), (51, 3998841), (63, 3237157), (77, 2648583), (99, 2060009), (119, 1713789), (147, 1387353), (153, 1332947), (187, 1090593), (231, 882861), (357, 571263), (441, 462451), (539, 378369), (561, 363531), (693, 294287), (833, 244827), (1071, 190421), (1309, 155799), (1617, 126123), (1683, 121177), (2473, 82467), (2499, 81609), (3927, 51933), (4851, 42041), (7419, 27489), (7497, 27203), (9163, 22257), (11781, 17311)]