18880016

素因数分解:

$2^4\times {\mathrm{487}}^1\times {\mathrm{2423}}^1$

素因数の和:2918

約数の個数: 20

約数和(自身を含む): 36670272

約数和(自身を除く): 17790256

約数列:

[1, 2, 4, 8, 16, 487, 974, 1948, 2423, 3896, 4846, 7792, 9692, 19384, 38768, 1180001, 2360002, 4720004, 9440008, 18880016]

約数ペア:

[(1, 18880016), (2, 9440008), (4, 4720004), (8, 2360002), (16, 1180001), (487, 38768), (974, 19384), (1948, 9692), (2423, 7792), (3896, 4846)]