21899169

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{797}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 32864832

約数和(自身を除く): 10965663

約数列:

[1, 3, 9, 43, 71, 129, 213, 387, 639, 797, 2391, 3053, 7173, 9159, 27477, 34271, 56587, 102813, 169761, 308439, 509283, 2433241, 7299723, 21899169]

約数ペア:

[(1, 21899169), (3, 7299723), (9, 2433241), (43, 509283), (71, 308439), (129, 169761), (213, 102813), (387, 56587), (639, 34271), (797, 27477), (2391, 9159), (3053, 7173)]