21431140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28961}}^1$

素因数の和:29007

約数の個数: 24

約数和(自身を含む): 46223352

約数和(自身を除く): 24792212

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28961, 57922, 115844, 144805, 289610, 579220, 1071557, 2143114, 4286228, 5357785, 10715570, 21431140]

約数ペア:

[(1, 21431140), (2, 10715570), (4, 5357785), (5, 4286228), (10, 2143114), (20, 1071557), (37, 579220), (74, 289610), (148, 144805), (185, 115844), (370, 57922), (740, 28961)]