19998274

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{503}}^1$

素因数の和:801

約数の個数: 16

約数和(自身を含む): 30506112

約数和(自身を除く): 10507838

約数列:

[1, 2, 103, 193, 206, 386, 503, 1006, 19879, 39758, 51809, 97079, 103618, 194158, 9999137, 19998274]

約数ペア:

[(1, 19998274), (2, 9999137), (103, 194158), (193, 103618), (206, 97079), (386, 51809), (503, 39758), (1006, 19879)]