13931721

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 23048064

約数和(自身を除く): 9116343

約数列:

[1, 3, 9, 17, 23, 37, 51, 69, 107, 111, 153, 207, 321, 333, 391, 629, 851, 963, 1173, 1819, 1887, 2461, 2553, 3519, 3959, 5457, 5661, 7383, 7659, 11877, 14467, 16371, 22149, 35631, 41837, 43401, 67303, 91057, 125511, 130203, 201909, 273171, 376533, 605727, 819513, 1547969, 4643907, 13931721]

約数ペア:

[(1, 13931721), (3, 4643907), (9, 1547969), (17, 819513), (23, 605727), (37, 376533), (51, 273171), (69, 201909), (107, 130203), (111, 125511), (153, 91057), (207, 67303), (321, 43401), (333, 41837), (391, 35631), (629, 22149), (851, 16371), (963, 14467), (1173, 11877), (1819, 7659), (1887, 7383), (2461, 5661), (2553, 5457), (3519, 3959)]