21670403425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{577}}^1\times {\mathrm{3331}}^1$

素因数の和:3970

約数の個数: 48

約数和(自身を含む): 30090199104

約数和(自身を除く): 8419795679

約数列:

[1, 5, 11, 25, 41, 55, 205, 275, 451, 577, 1025, 2255, 2885, 3331, 6347, 11275, 14425, 16655, 23657, 31735, 36641, 83275, 118285, 136571, 158675, 183205, 260227, 591425, 682855, 916025, 1301135, 1502281, 1921987, 3414275, 6505675, 7511405, 9609935, 21141857, 37557025, 48049675, 78801467, 105709285, 394007335, 528546425, 866816137, 1970036675, 4334080685, 21670403425]

約数ペア:

[(1, 21670403425), (5, 4334080685), (11, 1970036675), (25, 866816137), (41, 528546425), (55, 394007335), (205, 105709285), (275, 78801467), (451, 48049675), (577, 37557025), (1025, 21141857), (2255, 9609935), (2885, 7511405), (3331, 6505675), (6347, 3414275), (11275, 1921987), (14425, 1502281), (16655, 1301135), (23657, 916025), (31735, 682855), (36641, 591425), (83275, 260227), (118285, 183205), (136571, 158675)]