209997172

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{681809}}^1$

素因数の和:681831

約数の個数: 24

約数和(自身を含む): 458176320

約数和(自身を除く): 248179148

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 681809, 1363618, 2727236, 4772663, 7499899, 9545326, 14999798, 19090652, 29999596, 52499293, 104998586, 209997172]

約数ペア:

[(1, 209997172), (2, 104998586), (4, 52499293), (7, 29999596), (11, 19090652), (14, 14999798), (22, 9545326), (28, 7499899), (44, 4772663), (77, 2727236), (154, 1363618), (308, 681809)]