21343007

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 26714016

約数和(自身を除く): 5371009

約数列:

[1, 7, 17, 43, 97, 119, 301, 679, 731, 1649, 1849, 4171, 5117, 11543, 12943, 29197, 31433, 70907, 179353, 220031, 496349, 1255471, 3049001, 21343007]

約数ペア:

[(1, 21343007), (7, 3049001), (17, 1255471), (43, 496349), (97, 220031), (119, 179353), (301, 70907), (679, 31433), (731, 29197), (1649, 12943), (1849, 11543), (4171, 5117)]