1998556

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 4034016

約数和(自身を除く): 2035460

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 521, 548, 959, 1042, 1918, 2084, 3647, 3836, 7294, 14588, 71377, 142754, 285508, 499639, 999278, 1998556]

約数ペア:

[(1, 1998556), (2, 999278), (4, 499639), (7, 285508), (14, 142754), (28, 71377), (137, 14588), (274, 7294), (521, 3836), (548, 3647), (959, 2084), (1042, 1918)]