21006750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{757}}^1$

素因数の和:814

約数の個数: 64

約数和(自身を含む): 53921088

約数和(自身を除く): 32914338

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 37, 50, 74, 75, 111, 125, 150, 185, 222, 250, 370, 375, 555, 750, 757, 925, 1110, 1514, 1850, 2271, 2775, 3785, 4542, 4625, 5550, 7570, 9250, 11355, 13875, 18925, 22710, 27750, 28009, 37850, 56018, 56775, 84027, 94625, 113550, 140045, 168054, 189250, 280090, 283875, 420135, 567750, 700225, 840270, 1400450, 2100675, 3501125, 4201350, 7002250, 10503375, 21006750]

約数ペア:

[(1, 21006750), (2, 10503375), (3, 7002250), (5, 4201350), (6, 3501125), (10, 2100675), (15, 1400450), (25, 840270), (30, 700225), (37, 567750), (50, 420135), (74, 283875), (75, 280090), (111, 189250), (125, 168054), (150, 140045), (185, 113550), (222, 94625), (250, 84027), (370, 56775), (375, 56018), (555, 37850), (750, 28009), (757, 27750), (925, 22710), (1110, 18925), (1514, 13875), (1850, 11355), (2271, 9250), (2775, 7570), (3785, 5550), (4542, 4625)]