20918535

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1307}}^1$

素因数の和:1423

約数の個数: 32

約数和(自身を含む): 36916992

約数和(自身を除く): 15998457

約数列:

[1, 3, 5, 11, 15, 33, 55, 97, 165, 291, 485, 1067, 1307, 1455, 3201, 3921, 5335, 6535, 14377, 16005, 19605, 43131, 71885, 126779, 215655, 380337, 633895, 1394569, 1901685, 4183707, 6972845, 20918535]

約数ペア:

[(1, 20918535), (3, 6972845), (5, 4183707), (11, 1901685), (15, 1394569), (33, 633895), (55, 380337), (97, 215655), (165, 126779), (291, 71885), (485, 43131), (1067, 19605), (1307, 16005), (1455, 14377), (3201, 6535), (3921, 5335)]