21497820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{358297}}^1$

素因数の和:358309

約数の個数: 24

約数和(自身を含む): 60194064

約数和(自身を除く): 38696244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 358297, 716594, 1074891, 1433188, 1791485, 2149782, 3582970, 4299564, 5374455, 7165940, 10748910, 21497820]

約数ペア:

[(1, 21497820), (2, 10748910), (3, 7165940), (4, 5374455), (5, 4299564), (6, 3582970), (10, 2149782), (12, 1791485), (15, 1433188), (20, 1074891), (30, 716594), (60, 358297)]