20995844

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{1021}}^1$

素因数の和:1175

約数の個数: 24

約数和(自身を含む): 37858968

約数和(自身を除く): 16863124

約数列:

[1, 2, 4, 53, 97, 106, 194, 212, 388, 1021, 2042, 4084, 5141, 10282, 20564, 54113, 99037, 108226, 198074, 216452, 396148, 5248961, 10497922, 20995844]

約数ペア:

[(1, 20995844), (2, 10497922), (4, 5248961), (53, 396148), (97, 216452), (106, 198074), (194, 108226), (212, 99037), (388, 54113), (1021, 20564), (2042, 10282), (4084, 5141)]