19917382072

素因数分解:

$2^3\times 7^1\times {\mathrm{355667537}}^1$

素因数の和:355667550

約数の個数: 16

約数和(自身を含む): 42680104560

約数和(自身を除く): 22762722488

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 355667537, 711335074, 1422670148, 2489672759, 2845340296, 4979345518, 9958691036, 19917382072]

約数ペア:

[(1, 19917382072), (2, 9958691036), (4, 4979345518), (7, 2845340296), (8, 2489672759), (14, 1422670148), (28, 711335074), (56, 355667537)]