20209756

素因数分解:

$2^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{1063}}^1$

素因数の和:1178

約数の個数: 36

約数和(自身を含む): 41604528

約数和(自身を除く): 21394772

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 388, 679, 1063, 1358, 2126, 2716, 4252, 4753, 7441, 9506, 14882, 19012, 29764, 52087, 103111, 104174, 206222, 208348, 412444, 721777, 1443554, 2887108, 5052439, 10104878, 20209756]

約数ペア:

[(1, 20209756), (2, 10104878), (4, 5052439), (7, 2887108), (14, 1443554), (28, 721777), (49, 412444), (97, 208348), (98, 206222), (194, 104174), (196, 103111), (388, 52087), (679, 29764), (1063, 19012), (1358, 14882), (2126, 9506), (2716, 7441), (4252, 4753)]