18985438

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{1123}}^1$

素因数の和:1311

約数の個数: 16

約数和(自身を含む): 29134080

約数和(自身を除く): 10148642

約数列:

[1, 2, 79, 107, 158, 214, 1123, 2246, 8453, 16906, 88717, 120161, 177434, 240322, 9492719, 18985438]

約数ペア:

[(1, 18985438), (2, 9492719), (79, 240322), (107, 177434), (158, 120161), (214, 88717), (1123, 16906), (2246, 8453)]