20816398

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{3539}}^1$

素因数の和:3731

約数の個数: 16

約数和(自身を含む): 33261840

約数和(自身を除く): 12445442

約数列:

[1, 2, 17, 34, 173, 346, 2941, 3539, 5882, 7078, 60163, 120326, 612247, 1224494, 10408199, 20816398]

約数ペア:

[(1, 20816398), (2, 10408199), (17, 1224494), (34, 612247), (173, 120326), (346, 60163), (2941, 7078), (3539, 5882)]