21275690

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{92503}}^1$

素因数の和:92533

約数の個数: 16

約数和(自身を含む): 39961728

約数和(自身を除く): 18686038

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 92503, 185006, 462515, 925030, 2127569, 4255138, 10637845, 21275690]

約数ペア:

[(1, 21275690), (2, 10637845), (5, 4255138), (10, 2127569), (23, 925030), (46, 462515), (115, 185006), (230, 92503)]