16972839

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{11159}}^1$

素因数の和:11191

約数の個数: 18

約数和(自身を含む): 26549640

約数和(自身を除く): 9576801

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 11159, 33477, 100431, 145067, 435201, 1305603, 1885871, 5657613, 16972839]

約数ペア:

[(1, 16972839), (3, 5657613), (9, 1885871), (13, 1305603), (39, 435201), (117, 145067), (169, 100431), (507, 33477), (1521, 11159)]