13257321

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1979}}^1$

素因数の和:2029

約数の個数: 32

約数和(自身を含む): 22809600

約数和(自身を除く): 9552279

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 203, 231, 319, 609, 957, 1979, 2233, 5937, 6699, 13853, 21769, 41559, 57391, 65307, 152383, 172173, 401737, 457149, 631301, 1205211, 1893903, 4419107, 13257321]

約数ペア:

[(1, 13257321), (3, 4419107), (7, 1893903), (11, 1205211), (21, 631301), (29, 457149), (33, 401737), (77, 172173), (87, 152383), (203, 65307), (231, 57391), (319, 41559), (609, 21769), (957, 13853), (1979, 6699), (2233, 5937)]