20970288

素因数分解:

$2^4\times 3^2\times {\mathrm{107}}^1\times {\mathrm{1361}}^1$

素因数の和:1482

約数の個数: 60

約数和(自身を含む): 59279688

約数和(自身を除く): 38309400

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 107, 144, 214, 321, 428, 642, 856, 963, 1284, 1361, 1712, 1926, 2568, 2722, 3852, 4083, 5136, 5444, 7704, 8166, 10888, 12249, 15408, 16332, 21776, 24498, 32664, 48996, 65328, 97992, 145627, 195984, 291254, 436881, 582508, 873762, 1165016, 1310643, 1747524, 2330032, 2621286, 3495048, 5242572, 6990096, 10485144, 20970288]

約数ペア:

[(1, 20970288), (2, 10485144), (3, 6990096), (4, 5242572), (6, 3495048), (8, 2621286), (9, 2330032), (12, 1747524), (16, 1310643), (18, 1165016), (24, 873762), (36, 582508), (48, 436881), (72, 291254), (107, 195984), (144, 145627), (214, 97992), (321, 65328), (428, 48996), (642, 32664), (856, 24498), (963, 21776), (1284, 16332), (1361, 15408), (1712, 12249), (1926, 10888), (2568, 8166), (2722, 7704), (3852, 5444), (4083, 5136)]