19881874

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{2081}}^1$

素因数の和:2381

約数の個数: 16

約数和(自身を含む): 31704696

約数和(自身を除く): 11822822

約数列:

[1, 2, 17, 34, 281, 562, 2081, 4162, 4777, 9554, 35377, 70754, 584761, 1169522, 9940937, 19881874]

約数ペア:

[(1, 19881874), (2, 9940937), (17, 1169522), (34, 584761), (281, 70754), (562, 35377), (2081, 9554), (4162, 4777)]