20892525

素因数分解:

$3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1709}}^1$

素因数の和:1885

約数の個数: 24

約数和(自身を含む): 34774560

約数和(自身を除く): 13882035

約数列:

[1, 3, 5, 15, 25, 75, 163, 489, 815, 1709, 2445, 4075, 5127, 8545, 12225, 25635, 42725, 128175, 278567, 835701, 1392835, 4178505, 6964175, 20892525]

約数ペア:

[(1, 20892525), (3, 6964175), (5, 4178505), (15, 1392835), (25, 835701), (75, 278567), (163, 128175), (489, 42725), (815, 25635), (1709, 12225), (2445, 8545), (4075, 5127)]