21931090

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{26423}}^1$

素因数の和:26513

約数の個数: 16

約数和(自身を含む): 39953088

約数和(自身を除く): 18021998

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 26423, 52846, 132115, 264230, 2193109, 4386218, 10965545, 21931090]

約数ペア:

[(1, 21931090), (2, 10965545), (5, 4386218), (10, 2193109), (83, 264230), (166, 132115), (415, 52846), (830, 26423)]