18701284

素因数分解:

$2^2\times 7^1\times {\mathrm{667903}}^1$

素因数の和:667914

約数の個数: 12

約数和(自身を含む): 37402624

約数和(自身を除く): 18701340

約数列:

[1, 2, 4, 7, 14, 28, 667903, 1335806, 2671612, 4675321, 9350642, 18701284]

約数ペア:

[(1, 18701284), (2, 9350642), (4, 4675321), (7, 2671612), (14, 1335806), (28, 667903)]