21752703

素因数分解:

$3^2\times 7^1\times {\mathrm{449}}^1\times {\mathrm{769}}^1$

素因数の和:1231

約数の個数: 24

約数和(自身を含む): 36036000

約数和(自身を除く): 14283297

約数列:

[1, 3, 7, 9, 21, 63, 449, 769, 1347, 2307, 3143, 4041, 5383, 6921, 9429, 16149, 28287, 48447, 345281, 1035843, 2416967, 3107529, 7250901, 21752703]

約数ペア:

[(1, 21752703), (3, 7250901), (7, 3107529), (9, 2416967), (21, 1035843), (63, 345281), (449, 48447), (769, 28287), (1347, 16149), (2307, 9429), (3143, 6921), (4041, 5383)]