21290170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5231}}^1$

素因数の和:5286

約数の個数: 32

約数和(自身を含む): 42944256

約数和(自身を除く): 21654086

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 5231, 10462, 26155, 52310, 57541, 115082, 193547, 287705, 387094, 575410, 967735, 1935470, 2129017, 4258034, 10645085, 21290170]

約数ペア:

[(1, 21290170), (2, 10645085), (5, 4258034), (10, 2129017), (11, 1935470), (22, 967735), (37, 575410), (55, 387094), (74, 287705), (110, 193547), (185, 115082), (370, 57541), (407, 52310), (814, 26155), (2035, 10462), (4070, 5231)]