21804574

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{337}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 38110176

約数和(自身を除く): 16305602

約数列:

[1, 2, 11, 17, 22, 34, 173, 187, 337, 346, 374, 674, 1903, 2941, 3707, 3806, 5729, 5882, 7414, 11458, 32351, 58301, 63019, 64702, 116602, 126038, 641311, 991117, 1282622, 1982234, 10902287, 21804574]

約数ペア:

[(1, 21804574), (2, 10902287), (11, 1982234), (17, 1282622), (22, 991117), (34, 641311), (173, 126038), (187, 116602), (337, 64702), (346, 63019), (374, 58301), (674, 32351), (1903, 11458), (2941, 7414), (3707, 5882), (3806, 5729)]