21249000

素因数分解:

$2^3\times 3^3\times 5^3\times {\mathrm{787}}^1$

素因数の和:817

約数の個数: 128

約数和(自身を含む): 73756800

約数和(自身を除く): 52507800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 50, 54, 60, 72, 75, 90, 100, 108, 120, 125, 135, 150, 180, 200, 216, 225, 250, 270, 300, 360, 375, 450, 500, 540, 600, 675, 750, 787, 900, 1000, 1080, 1125, 1350, 1500, 1574, 1800, 2250, 2361, 2700, 3000, 3148, 3375, 3935, 4500, 4722, 5400, 6296, 6750, 7083, 7870, 9000, 9444, 11805, 13500, 14166, 15740, 18888, 19675, 21249, 23610, 27000, 28332, 31480, 35415, 39350, 42498, 47220, 56664, 59025, 70830, 78700, 84996, 94440, 98375, 106245, 118050, 141660, 157400, 169992, 177075, 196750, 212490, 236100, 283320, 295125, 354150, 393500, 424980, 472200, 531225, 590250, 708300, 787000, 849960, 885375, 1062450, 1180500, 1416600, 1770750, 2124900, 2361000, 2656125, 3541500, 4249800, 5312250, 7083000, 10624500, 21249000]

約数ペア:

[(1, 21249000), (2, 10624500), (3, 7083000), (4, 5312250), (5, 4249800), (6, 3541500), (8, 2656125), (9, 2361000), (10, 2124900), (12, 1770750), (15, 1416600), (18, 1180500), (20, 1062450), (24, 885375), (25, 849960), (27, 787000), (30, 708300), (36, 590250), (40, 531225), (45, 472200), (50, 424980), (54, 393500), (60, 354150), (72, 295125), (75, 283320), (90, 236100), (100, 212490), (108, 196750), (120, 177075), (125, 169992), (135, 157400), (150, 141660), (180, 118050), (200, 106245), (216, 98375), (225, 94440), (250, 84996), (270, 78700), (300, 70830), (360, 59025), (375, 56664), (450, 47220), (500, 42498), (540, 39350), (600, 35415), (675, 31480), (750, 28332), (787, 27000), (900, 23610), (1000, 21249), (1080, 19675), (1125, 18888), (1350, 15740), (1500, 14166), (1574, 13500), (1800, 11805), (2250, 9444), (2361, 9000), (2700, 7870), (3000, 7083), (3148, 6750), (3375, 6296), (3935, 5400), (4500, 4722)]