20121896421

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{816271}}^1$

素因数の和:816374

約数の個数: 32

約数和(自身を含む): 32912087040

約数和(自身を除く): 12790190619

約数列:

[1, 3, 9, 11, 27, 33, 83, 99, 249, 297, 747, 913, 2241, 2739, 8217, 24651, 816271, 2448813, 7346439, 8978981, 22039317, 26936943, 67750493, 80810829, 203251479, 242432487, 609754437, 745255423, 1829263311, 2235766269, 6707298807, 20121896421]

約数ペア:

[(1, 20121896421), (3, 6707298807), (9, 2235766269), (11, 1829263311), (27, 745255423), (33, 609754437), (83, 242432487), (99, 203251479), (249, 80810829), (297, 67750493), (747, 26936943), (913, 22039317), (2241, 8978981), (2739, 7346439), (8217, 2448813), (24651, 816271)]