18929871

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3571}}^1$

素因数の和:3627

約数の個数: 24

約数和(自身を含む): 29719040

約数和(自身を除く): 10789169

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 3571, 5301, 10713, 32139, 67849, 110701, 203547, 332103, 610641, 996309, 2103319, 6309957, 18929871]

約数ペア:

[(1, 18929871), (3, 6309957), (9, 2103319), (19, 996309), (31, 610641), (57, 332103), (93, 203547), (171, 110701), (279, 67849), (589, 32139), (1767, 10713), (3571, 5301)]