20157764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{4723}}^1$

素因数の和:4835

約数の個数: 24

約数和(自身を含む): 38887968

約数和(自身を除く): 18730204

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 4723, 9446, 18892, 51953, 103906, 207812, 458131, 916262, 1832524, 5039441, 10078882, 20157764]

約数ペア:

[(1, 20157764), (2, 10078882), (4, 5039441), (11, 1832524), (22, 916262), (44, 458131), (97, 207812), (194, 103906), (388, 51953), (1067, 18892), (2134, 9446), (4268, 4723)]