21047600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7517}}^1$

素因数の和:7542

約数の個数: 60

約数和(自身を含む): 57798384

約数和(自身を除く): 36750784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 7517, 15034, 30068, 37585, 52619, 60136, 75170, 105238, 120272, 150340, 187925, 210476, 263095, 300680, 375850, 420952, 526190, 601360, 751700, 841904, 1052380, 1315475, 1503400, 2104760, 2630950, 3006800, 4209520, 5261900, 10523800, 21047600]

約数ペア:

[(1, 21047600), (2, 10523800), (4, 5261900), (5, 4209520), (7, 3006800), (8, 2630950), (10, 2104760), (14, 1503400), (16, 1315475), (20, 1052380), (25, 841904), (28, 751700), (35, 601360), (40, 526190), (50, 420952), (56, 375850), (70, 300680), (80, 263095), (100, 210476), (112, 187925), (140, 150340), (175, 120272), (200, 105238), (280, 75170), (350, 60136), (400, 52619), (560, 37585), (700, 30068), (1400, 15034), (2800, 7517)]