31445739

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{29863}}^1$

素因数の和:29888

約数の個数: 20

約数和(自身を含む): 50589616

約数和(自身を除く): 19143877

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 29863, 89589, 268767, 388219, 806301, 1164657, 2418903, 3493971, 10481913, 31445739]

約数ペア:

[(1, 31445739), (3, 10481913), (9, 3493971), (13, 2418903), (27, 1164657), (39, 806301), (81, 388219), (117, 268767), (351, 89589), (1053, 29863)]