18899757

素因数分解:

$3^3\times {\mathrm{449}}^1\times {\mathrm{1559}}^1$

素因数の和:2017

約数の個数: 16

約数和(自身を含む): 28080000

約数和(自身を除く): 9180243

約数列:

[1, 3, 9, 27, 449, 1347, 1559, 4041, 4677, 12123, 14031, 42093, 699991, 2099973, 6299919, 18899757]

約数ペア:

[(1, 18899757), (3, 6299919), (9, 2099973), (27, 699991), (449, 42093), (1347, 14031), (1559, 12123), (4041, 4677)]