18919228

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{66617}}^1$

素因数の和:66692

約数の個数: 12

約数和(自身を含む): 33575472

約数和(自身を除く): 14656244

約数列:

[1, 2, 4, 71, 142, 284, 66617, 133234, 266468, 4729807, 9459614, 18919228]

約数ペア:

[(1, 18919228), (2, 9459614), (4, 4729807), (71, 266468), (142, 133234), (284, 66617)]