21431845

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1201}}^1$

素因数の和:1332

約数の個数: 16

約数和(自身を含む): 26655552

約数和(自身を除く): 5223707

約数列:

[1, 5, 43, 83, 215, 415, 1201, 3569, 6005, 17845, 51643, 99683, 258215, 498415, 4286369, 21431845]

約数ペア:

[(1, 21431845), (5, 4286369), (43, 498415), (83, 258215), (215, 99683), (415, 51643), (1201, 17845), (3569, 6005)]