1989646

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:579

約数の個数: 16

約数和(自身を含む): 3190320

約数和(自身を除く): 1200674

約数列:

[1, 2, 17, 34, 139, 278, 421, 842, 2363, 4726, 7157, 14314, 58519, 117038, 994823, 1989646]

約数ペア:

[(1, 1989646), (2, 994823), (17, 117038), (34, 58519), (139, 14314), (278, 7157), (421, 4726), (842, 2363)]