16215805

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 21071232

約数和(自身を除く): 4855427

約数列:

[1, 5, 23, 37, 103, 115, 185, 515, 851, 1369, 2369, 3811, 4255, 6845, 11845, 19055, 31487, 87653, 141007, 157435, 438265, 705035, 3243161, 16215805]

約数ペア:

[(1, 16215805), (5, 3243161), (23, 705035), (37, 438265), (103, 157435), (115, 141007), (185, 87653), (515, 31487), (851, 19055), (1369, 11845), (2369, 6845), (3811, 4255)]