21516540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3697}}^1$

素因数の和:3806

約数の個数: 48

約数和(自身を含む): 60883872

約数和(自身を除く): 39367332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3697, 5820, 7394, 11091, 14788, 18485, 22182, 36970, 44364, 55455, 73940, 110910, 221820, 358609, 717218, 1075827, 1434436, 1793045, 2151654, 3586090, 4303308, 5379135, 7172180, 10758270, 21516540]

約数ペア:

[(1, 21516540), (2, 10758270), (3, 7172180), (4, 5379135), (5, 4303308), (6, 3586090), (10, 2151654), (12, 1793045), (15, 1434436), (20, 1075827), (30, 717218), (60, 358609), (97, 221820), (194, 110910), (291, 73940), (388, 55455), (485, 44364), (582, 36970), (970, 22182), (1164, 18485), (1455, 14788), (1940, 11091), (2910, 7394), (3697, 5820)]