21052935

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20341}}^1$

素因数の和:20375

約数の個数: 24

約数和(自身を含む): 38080224

約数和(自身を除く): 17027289

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20341, 61023, 101705, 183069, 305115, 467843, 915345, 1403529, 2339215, 4210587, 7017645, 21052935]

約数ペア:

[(1, 21052935), (3, 7017645), (5, 4210587), (9, 2339215), (15, 1403529), (23, 915345), (45, 467843), (69, 305115), (115, 183069), (207, 101705), (345, 61023), (1035, 20341)]