16921269

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 25259520

約数和(自身を除く): 8338251

約数列:

[1, 3, 9, 47, 109, 141, 327, 367, 423, 981, 1101, 3303, 5123, 15369, 17249, 40003, 46107, 51747, 120009, 155241, 360027, 1880141, 5640423, 16921269]

約数ペア:

[(1, 16921269), (3, 5640423), (9, 1880141), (47, 360027), (109, 155241), (141, 120009), (327, 51747), (367, 46107), (423, 40003), (981, 17249), (1101, 15369), (3303, 5123)]