20747199

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{14621}}^1$

素因数の和:14678

約数の個数: 16

約数和(自身を含む): 30881664

約数和(自身を除く): 10134465

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 14621, 43863, 160831, 482493, 628703, 1886109, 6915733, 20747199]

約数ペア:

[(1, 20747199), (3, 6915733), (11, 1886109), (33, 628703), (43, 482493), (129, 160831), (473, 43863), (1419, 14621)]