19994877

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1579}}^1$

素因数の和:1662

約数の個数: 32

約数和(自身を含む): 34380800

約数和(自身を除く): 14385923

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1579, 1809, 4221, 4737, 11053, 12663, 14211, 33159, 42633, 99477, 105793, 298431, 317379, 740551, 952137, 2221653, 2856411, 6664959, 19994877]

約数ペア:

[(1, 19994877), (3, 6664959), (7, 2856411), (9, 2221653), (21, 952137), (27, 740551), (63, 317379), (67, 298431), (189, 105793), (201, 99477), (469, 42633), (603, 33159), (1407, 14211), (1579, 12663), (1809, 11053), (4221, 4737)]