19868877

素因数分解:

$3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1823}}^1$

素因数の和:2009

約数の個数: 24

約数和(自身を含む): 33007104

約数和(自身を除く): 13138227

約数列:

[1, 3, 7, 9, 21, 63, 173, 519, 1211, 1557, 1823, 3633, 5469, 10899, 12761, 16407, 38283, 114849, 315379, 946137, 2207653, 2838411, 6622959, 19868877]

約数ペア:

[(1, 19868877), (3, 6622959), (7, 2838411), (9, 2207653), (21, 946137), (63, 315379), (173, 114849), (519, 38283), (1211, 16407), (1557, 12761), (1823, 10899), (3633, 5469)]