20519912

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6007}}^1$

素因数の和:6081

約数の個数: 32

約数和(自身を含む): 44699520

約数和(自身を除く): 24179608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6007, 12014, 24028, 42049, 48056, 84098, 168196, 336392, 366427, 732854, 1465708, 2564989, 2931416, 5129978, 10259956, 20519912]

約数ペア:

[(1, 20519912), (2, 10259956), (4, 5129978), (7, 2931416), (8, 2564989), (14, 1465708), (28, 732854), (56, 366427), (61, 336392), (122, 168196), (244, 84098), (427, 48056), (488, 42049), (854, 24028), (1708, 12014), (3416, 6007)]