19517608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{863}}^1$

素因数の和:1137

約数の個数: 32

約数和(自身を含む): 40124160

約数和(自身を除く): 20606552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 257, 514, 863, 1028, 1726, 2056, 2827, 3452, 5654, 6904, 9493, 11308, 18986, 22616, 37972, 75944, 221791, 443582, 887164, 1774328, 2439701, 4879402, 9758804, 19517608]

約数ペア:

[(1, 19517608), (2, 9758804), (4, 4879402), (8, 2439701), (11, 1774328), (22, 887164), (44, 443582), (88, 221791), (257, 75944), (514, 37972), (863, 22616), (1028, 18986), (1726, 11308), (2056, 9493), (2827, 6904), (3452, 5654)]