20607405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 41975808

約数和(自身を除く): 21368403

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 39, 65, 91, 93, 105, 155, 195, 217, 273, 403, 455, 465, 487, 651, 1085, 1209, 1365, 1461, 2015, 2435, 2821, 3255, 3409, 6045, 6331, 7305, 8463, 10227, 14105, 15097, 17045, 18993, 31655, 42315, 44317, 45291, 51135, 75485, 94965, 105679, 132951, 196261, 221585, 226455, 317037, 528395, 588783, 664755, 981305, 1373827, 1585185, 2943915, 4121481, 6869135, 20607405]

約数ペア:

[(1, 20607405), (3, 6869135), (5, 4121481), (7, 2943915), (13, 1585185), (15, 1373827), (21, 981305), (31, 664755), (35, 588783), (39, 528395), (65, 317037), (91, 226455), (93, 221585), (105, 196261), (155, 132951), (195, 105679), (217, 94965), (273, 75485), (403, 51135), (455, 45291), (465, 44317), (487, 42315), (651, 31655), (1085, 18993), (1209, 17045), (1365, 15097), (1461, 14105), (2015, 10227), (2435, 8463), (2821, 7305), (3255, 6331), (3409, 6045)]