21360339

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2371}}^1$

素因数の和:2408

約数の個数: 48

約数和(自身を含む): 41443584

約数和(自身を除く): 20083245

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 2371, 3003, 7113, 9009, 16597, 21339, 26081, 30823, 49791, 78243, 92469, 149373, 182567, 215761, 234729, 277407, 339053, 547701, 647283, 1017159, 1643103, 1941849, 2373371, 3051477, 7120113, 21360339]

約数ペア:

[(1, 21360339), (3, 7120113), (7, 3051477), (9, 2373371), (11, 1941849), (13, 1643103), (21, 1017159), (33, 647283), (39, 547701), (63, 339053), (77, 277407), (91, 234729), (99, 215761), (117, 182567), (143, 149373), (231, 92469), (273, 78243), (429, 49791), (693, 30823), (819, 26081), (1001, 21339), (1287, 16597), (2371, 9009), (3003, 7113)]