20772796

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:450

約数の個数: 36

約数和(自身を含む): 40353264

約数和(自身を除く): 19580468

約数列:

[1, 2, 4, 11, 22, 44, 121, 167, 242, 257, 334, 484, 514, 668, 1028, 1837, 2827, 3674, 5654, 7348, 11308, 20207, 31097, 40414, 42919, 62194, 80828, 85838, 124388, 171676, 472109, 944218, 1888436, 5193199, 10386398, 20772796]

約数ペア:

[(1, 20772796), (2, 10386398), (4, 5193199), (11, 1888436), (22, 944218), (44, 472109), (121, 171676), (167, 124388), (242, 85838), (257, 80828), (334, 62194), (484, 42919), (514, 40414), (668, 31097), (1028, 20207), (1837, 11308), (2827, 7348), (3674, 5654)]