18722188

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 33367040

約数和(自身を除く): 14644852

約数列:

[1, 2, 4, 139, 151, 223, 278, 302, 446, 556, 604, 892, 20989, 30997, 33673, 41978, 61994, 67346, 83956, 123988, 134692, 4680547, 9361094, 18722188]

約数ペア:

[(1, 18722188), (2, 9361094), (4, 4680547), (139, 134692), (151, 123988), (223, 83956), (278, 67346), (302, 61994), (446, 41978), (556, 33673), (604, 30997), (892, 20989)]