21143500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{863}}^1$

素因数の和:896

約数の個数: 72

約数和(自身を含む): 53778816

約数和(自身を除く): 32635316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 700, 863, 875, 980, 1225, 1726, 1750, 2450, 3452, 3500, 4315, 4900, 6041, 6125, 8630, 12082, 12250, 17260, 21575, 24164, 24500, 30205, 42287, 43150, 60410, 84574, 86300, 107875, 120820, 151025, 169148, 211435, 215750, 302050, 422870, 431500, 604100, 755125, 845740, 1057175, 1510250, 2114350, 3020500, 4228700, 5285875, 10571750, 21143500]

約数ペア:

[(1, 21143500), (2, 10571750), (4, 5285875), (5, 4228700), (7, 3020500), (10, 2114350), (14, 1510250), (20, 1057175), (25, 845740), (28, 755125), (35, 604100), (49, 431500), (50, 422870), (70, 302050), (98, 215750), (100, 211435), (125, 169148), (140, 151025), (175, 120820), (196, 107875), (245, 86300), (250, 84574), (350, 60410), (490, 43150), (500, 42287), (700, 30205), (863, 24500), (875, 24164), (980, 21575), (1225, 17260), (1726, 12250), (1750, 12082), (2450, 8630), (3452, 6125), (3500, 6041), (4315, 4900)]