19539443

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 8039437

約数列:

[1, 7, 11, 17, 23, 59, 77, 119, 121, 161, 187, 253, 391, 413, 649, 847, 1003, 1309, 1357, 1771, 2057, 2737, 2783, 4301, 4543, 7021, 7139, 9499, 11033, 14399, 14927, 19481, 23069, 30107, 47311, 49973, 77231, 104489, 121363, 161483, 164197, 253759, 331177, 849541, 1149379, 1776313, 2791349, 19539443]

約数ペア:

[(1, 19539443), (7, 2791349), (11, 1776313), (17, 1149379), (23, 849541), (59, 331177), (77, 253759), (119, 164197), (121, 161483), (161, 121363), (187, 104489), (253, 77231), (391, 49973), (413, 47311), (649, 30107), (847, 23069), (1003, 19481), (1309, 14927), (1357, 14399), (1771, 11033), (2057, 9499), (2737, 7139), (2783, 7021), (4301, 4543)]