18968644

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{66791}}^1$

素因数の和:66866

約数の個数: 12

約数和(自身を含む): 33663168

約数和(自身を除く): 14694524

約数列:

[1, 2, 4, 71, 142, 284, 66791, 133582, 267164, 4742161, 9484322, 18968644]

約数ペア:

[(1, 18968644), (2, 9484322), (4, 4742161), (71, 267164), (142, 133582), (284, 66791)]