21000612451

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{983}}^1\times {\mathrm{18059}}^1$

素因数の和:19075

約数の個数: 24

約数和(自身を含む): 26016802560

約数和(自身を除く): 5016190109

約数列:

[1, 7, 13, 91, 169, 983, 1183, 6881, 12779, 18059, 89453, 126413, 166127, 234767, 1162889, 1643369, 3051971, 17751997, 21363797, 124263979, 230775961, 1615431727, 3000087493, 21000612451]

約数ペア:

[(1, 21000612451), (7, 3000087493), (13, 1615431727), (91, 230775961), (169, 124263979), (983, 21363797), (1183, 17751997), (6881, 3051971), (12779, 1643369), (18059, 1162889), (89453, 234767), (126413, 166127)]