201990904786

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{213521041}}^1$

素因数の和:213521097

約数の個数: 16

約数和(自身を含む): 338217330528

約数和(自身を除く): 136226425742

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 213521041, 427042082, 2348731451, 4697462902, 9181404763, 18362809526, 100995452393, 201990904786]

約数ペア:

[(1, 201990904786), (2, 100995452393), (11, 18362809526), (22, 9181404763), (43, 4697462902), (86, 2348731451), (473, 427042082), (946, 213521041)]