21068250

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{4013}}^1$

素因数の和:4040

約数の個数: 64

約数和(自身を含む): 60113664

約数和(自身を除く): 39045414

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 125, 150, 175, 210, 250, 350, 375, 525, 750, 875, 1050, 1750, 2625, 4013, 5250, 8026, 12039, 20065, 24078, 28091, 40130, 56182, 60195, 84273, 100325, 120390, 140455, 168546, 200650, 280910, 300975, 421365, 501625, 601950, 702275, 842730, 1003250, 1404550, 1504875, 2106825, 3009750, 3511375, 4213650, 7022750, 10534125, 21068250]

約数ペア:

[(1, 21068250), (2, 10534125), (3, 7022750), (5, 4213650), (6, 3511375), (7, 3009750), (10, 2106825), (14, 1504875), (15, 1404550), (21, 1003250), (25, 842730), (30, 702275), (35, 601950), (42, 501625), (50, 421365), (70, 300975), (75, 280910), (105, 200650), (125, 168546), (150, 140455), (175, 120390), (210, 100325), (250, 84273), (350, 60195), (375, 56182), (525, 40130), (750, 28091), (875, 24078), (1050, 20065), (1750, 12039), (2625, 8026), (4013, 5250)]