21000982320

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9722677}}^1$

素因数の和:9722699

約数の個数: 80

約数和(自身を含む): 72336724320

約数和(自身を除く): 51335742000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9722677, 19445354, 29168031, 38890708, 48613385, 58336062, 77781416, 87504093, 97226770, 116672124, 145840155, 155562832, 175008186, 194453540, 233344248, 262512279, 291680310, 350016372, 388907080, 437520465, 466688496, 525024558, 583360620, 700032744, 777814160, 875040930, 1050049116, 1166721240, 1312561395, 1400065488, 1750081860, 2100098232, 2333442480, 2625122790, 3500163720, 4200196464, 5250245580, 7000327440, 10500491160, 21000982320]

約数ペア:

[(1, 21000982320), (2, 10500491160), (3, 7000327440), (4, 5250245580), (5, 4200196464), (6, 3500163720), (8, 2625122790), (9, 2333442480), (10, 2100098232), (12, 1750081860), (15, 1400065488), (16, 1312561395), (18, 1166721240), (20, 1050049116), (24, 875040930), (27, 777814160), (30, 700032744), (36, 583360620), (40, 525024558), (45, 466688496), (48, 437520465), (54, 388907080), (60, 350016372), (72, 291680310), (80, 262512279), (90, 233344248), (108, 194453540), (120, 175008186), (135, 155562832), (144, 145840155), (180, 116672124), (216, 97226770), (240, 87504093), (270, 77781416), (360, 58336062), (432, 48613385), (540, 38890708), (720, 29168031), (1080, 19445354), (2160, 9722677)]