21379920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89083}}^1$

素因数の和:89099

約数の個数: 40

約数和(自身を含む): 66278496

約数和(自身を除く): 44898576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89083, 178166, 267249, 356332, 445415, 534498, 712664, 890830, 1068996, 1336245, 1425328, 1781660, 2137992, 2672490, 3563320, 4275984, 5344980, 7126640, 10689960, 21379920]

約数ペア:

[(1, 21379920), (2, 10689960), (3, 7126640), (4, 5344980), (5, 4275984), (6, 3563320), (8, 2672490), (10, 2137992), (12, 1781660), (15, 1425328), (16, 1336245), (20, 1068996), (24, 890830), (30, 712664), (40, 534498), (48, 445415), (60, 356332), (80, 267249), (120, 178166), (240, 89083)]