18199888

素因数分解:

$2^4\times 7^1\times {\mathrm{162499}}^1$

素因数の和:162514

約数の個数: 20

約数和(自身を含む): 40300000

約数和(自身を除く): 22100112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 162499, 324998, 649996, 1137493, 1299992, 2274986, 2599984, 4549972, 9099944, 18199888]

約数ペア:

[(1, 18199888), (2, 9099944), (4, 4549972), (7, 2599984), (8, 2274986), (14, 1299992), (16, 1137493), (28, 649996), (56, 324998), (112, 162499)]