21346720

素因数分解:

$2^5\times 5^1\times {\mathrm{133417}}^1$

素因数の和:133432

約数の個数: 24

約数和(自身を含む): 50432004

約数和(自身を除く): 29085284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 133417, 266834, 533668, 667085, 1067336, 1334170, 2134672, 2668340, 4269344, 5336680, 10673360, 21346720]

約数ペア:

[(1, 21346720), (2, 10673360), (4, 5336680), (5, 4269344), (8, 2668340), (10, 2134672), (16, 1334170), (20, 1067336), (32, 667085), (40, 533668), (80, 266834), (160, 133417)]