21338780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36791}}^1$

素因数の和:36829

約数の個数: 24

約数和(自身を含む): 46357920

約数和(自身を除く): 25019140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36791, 73582, 147164, 183955, 367910, 735820, 1066939, 2133878, 4267756, 5334695, 10669390, 21338780]

約数ペア:

[(1, 21338780), (2, 10669390), (4, 5334695), (5, 4267756), (10, 2133878), (20, 1066939), (29, 735820), (58, 367910), (116, 183955), (145, 147164), (290, 73582), (580, 36791)]