21607220

素因数分解:

$2^2\times 5^1\times {\mathrm{937}}^1\times {\mathrm{1153}}^1$

素因数の和:2099

約数の個数: 24

約数和(自身を含む): 45462984

約数和(自身を除く): 23855764

約数列:

[1, 2, 4, 5, 10, 20, 937, 1153, 1874, 2306, 3748, 4612, 4685, 5765, 9370, 11530, 18740, 23060, 1080361, 2160722, 4321444, 5401805, 10803610, 21607220]

約数ペア:

[(1, 21607220), (2, 10803610), (4, 5401805), (5, 4321444), (10, 2160722), (20, 1080361), (937, 23060), (1153, 18740), (1874, 11530), (2306, 9370), (3748, 5765), (4612, 4685)]