21414267

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3907}}^1$

素因数の和:3952

約数の個数: 32

約数和(自身を含む): 37516800

約数和(自身を除く): 16102533

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3907, 5481, 11721, 27349, 35163, 82047, 105489, 113303, 246141, 339909, 738423, 793121, 1019727, 2379363, 3059181, 7138089, 21414267]

約数ペア:

[(1, 21414267), (3, 7138089), (7, 3059181), (9, 2379363), (21, 1019727), (27, 793121), (29, 738423), (63, 339909), (87, 246141), (189, 113303), (203, 105489), (261, 82047), (609, 35163), (783, 27349), (1827, 11721), (3907, 5481)]