21828508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1549}}^1$

素因数の和:1837

約数の個数: 24

約数和(自身を含む): 41316800

約数和(自身を除く): 19488292

約数列:

[1, 2, 4, 13, 26, 52, 271, 542, 1084, 1549, 3098, 3523, 6196, 7046, 14092, 20137, 40274, 80548, 419779, 839558, 1679116, 5457127, 10914254, 21828508]

約数ペア:

[(1, 21828508), (2, 10914254), (4, 5457127), (13, 1679116), (26, 839558), (52, 419779), (271, 80548), (542, 40274), (1084, 20137), (1549, 14092), (3098, 7046), (3523, 6196)]