21194631

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1669}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 32825520

約数和(自身を除く): 11630889

約数列:

[1, 3, 9, 17, 51, 83, 153, 249, 747, 1411, 1669, 4233, 5007, 12699, 15021, 28373, 85119, 138527, 255357, 415581, 1246743, 2354959, 7064877, 21194631]

約数ペア:

[(1, 21194631), (3, 7064877), (9, 2354959), (17, 1246743), (51, 415581), (83, 255357), (153, 138527), (249, 85119), (747, 28373), (1411, 15021), (1669, 12699), (4233, 5007)]