2161809

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{2053}}^1$

素因数の和:2078

約数の個数: 20

約数和(自身を含む): 3479476

約数和(自身を除く): 1317667

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 2053, 6159, 18477, 26689, 55431, 80067, 166293, 240201, 720603, 2161809]

約数ペア:

[(1, 2161809), (3, 720603), (9, 240201), (13, 166293), (27, 80067), (39, 55431), (81, 26689), (117, 18477), (351, 6159), (1053, 2053)]