22779910

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{20899}}^1$

素因数の和:21015

約数の個数: 16

約数和(自身を含む): 41382000

約数和(自身を除く): 18602090

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 20899, 41798, 104495, 208990, 2277991, 4555982, 11389955, 22779910]

約数ペア:

[(1, 22779910), (2, 11389955), (5, 4555982), (10, 2277991), (109, 208990), (218, 104495), (545, 41798), (1090, 20899)]