21607760

素因数分解:

$2^4\times 5^1\times {\mathrm{270097}}^1$

素因数の和:270110

約数の個数: 20

約数和(自身を含む): 50238228

約数和(自身を除く): 28630468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270097, 540194, 1080388, 1350485, 2160776, 2700970, 4321552, 5401940, 10803880, 21607760]

約数ペア:

[(1, 21607760), (2, 10803880), (4, 5401940), (5, 4321552), (8, 2700970), (10, 2160776), (16, 1350485), (20, 1080388), (40, 540194), (80, 270097)]