18699021

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9941}}^1$

素因数の和:9977

約数の個数: 24

約数和(自身を含む): 31019040

約数和(自身を除く): 12320019

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 9941, 29823, 89469, 109351, 188879, 328053, 566637, 984159, 1699911, 2077669, 6233007, 18699021]

約数ペア:

[(1, 18699021), (3, 6233007), (9, 2077669), (11, 1699911), (19, 984159), (33, 566637), (57, 328053), (99, 188879), (171, 109351), (209, 89469), (627, 29823), (1881, 9941)]