20457437

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 7411747

約数列:

[1, 7, 11, 13, 77, 91, 107, 143, 191, 749, 1001, 1177, 1337, 1391, 2101, 2483, 8239, 9737, 14707, 15301, 17381, 20437, 27313, 107107, 143059, 191191, 224807, 265681, 1573649, 1859767, 2922491, 20457437]

約数ペア:

[(1, 20457437), (7, 2922491), (11, 1859767), (13, 1573649), (77, 265681), (91, 224807), (107, 191191), (143, 143059), (191, 107107), (749, 27313), (1001, 20437), (1177, 17381), (1337, 15301), (1391, 14707), (2101, 9737), (2483, 8239)]