19986316

素因数分解:

$2^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{953}}^1$

素因数の和:1078

約数の個数: 36

約数和(自身を含む): 41109768

約数和(自身を除く): 21123452

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 107, 196, 214, 428, 749, 953, 1498, 1906, 2996, 3812, 5243, 6671, 10486, 13342, 20972, 26684, 46697, 93394, 101971, 186788, 203942, 407884, 713797, 1427594, 2855188, 4996579, 9993158, 19986316]

約数ペア:

[(1, 19986316), (2, 9993158), (4, 4996579), (7, 2855188), (14, 1427594), (28, 713797), (49, 407884), (98, 203942), (107, 186788), (196, 101971), (214, 93394), (428, 46697), (749, 26684), (953, 20972), (1498, 13342), (1906, 10486), (2996, 6671), (3812, 5243)]