21892689

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26731}}^1$

素因数の和:26757

約数の個数: 24

約数和(自身を含む): 38921792

約数和(自身を除く): 17029103

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 26731, 80193, 187117, 240579, 347503, 561351, 1042509, 1684053, 2432521, 3127527, 7297563, 21892689]

約数ペア:

[(1, 21892689), (3, 7297563), (7, 3127527), (9, 2432521), (13, 1684053), (21, 1042509), (39, 561351), (63, 347503), (91, 240579), (117, 187117), (273, 80193), (819, 26731)]