18883991

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5119}}^1$

素因数の和:5174

約数の個数: 16

約数和(自身を含む): 23592960

約数和(自身を除く): 4708969

約数列:

[1, 7, 17, 31, 119, 217, 527, 3689, 5119, 35833, 87023, 158689, 609161, 1110823, 2697713, 18883991]

約数ペア:

[(1, 18883991), (7, 2697713), (17, 1110823), (31, 609161), (119, 158689), (217, 87023), (527, 35833), (3689, 5119)]