21511000

素因数分解:

$2^3\times 5^3\times 7^2\times {\mathrm{439}}^1$

素因数の和:474

約数の個数: 96

約数和(自身を含む): 58687200

約数和(自身を除く): 37176200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 125, 140, 175, 196, 200, 245, 250, 280, 350, 392, 439, 490, 500, 700, 875, 878, 980, 1000, 1225, 1400, 1750, 1756, 1960, 2195, 2450, 3073, 3500, 3512, 4390, 4900, 6125, 6146, 7000, 8780, 9800, 10975, 12250, 12292, 15365, 17560, 21511, 21950, 24500, 24584, 30730, 43022, 43900, 49000, 54875, 61460, 76825, 86044, 87800, 107555, 109750, 122920, 153650, 172088, 215110, 219500, 307300, 384125, 430220, 439000, 537775, 614600, 768250, 860440, 1075550, 1536500, 2151100, 2688875, 3073000, 4302200, 5377750, 10755500, 21511000]

約数ペア:

[(1, 21511000), (2, 10755500), (4, 5377750), (5, 4302200), (7, 3073000), (8, 2688875), (10, 2151100), (14, 1536500), (20, 1075550), (25, 860440), (28, 768250), (35, 614600), (40, 537775), (49, 439000), (50, 430220), (56, 384125), (70, 307300), (98, 219500), (100, 215110), (125, 172088), (140, 153650), (175, 122920), (196, 109750), (200, 107555), (245, 87800), (250, 86044), (280, 76825), (350, 61460), (392, 54875), (439, 49000), (490, 43900), (500, 43022), (700, 30730), (875, 24584), (878, 24500), (980, 21950), (1000, 21511), (1225, 17560), (1400, 15365), (1750, 12292), (1756, 12250), (1960, 10975), (2195, 9800), (2450, 8780), (3073, 7000), (3500, 6146), (3512, 6125), (4390, 4900)]