21481920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7459}}^1$

素因数の和:7482

約数の個数: 84

約数和(自身を含む): 73898760

約数和(自身を除く): 52416840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7459, 14918, 22377, 29836, 37295, 44754, 59672, 67131, 74590, 89508, 111885, 119344, 134262, 149180, 179016, 223770, 238688, 268524, 298360, 335655, 358032, 447540, 477376, 537048, 596720, 671310, 716064, 895080, 1074096, 1193440, 1342620, 1432128, 1790160, 2148192, 2386880, 2685240, 3580320, 4296384, 5370480, 7160640, 10740960, 21481920]

約数ペア:

[(1, 21481920), (2, 10740960), (3, 7160640), (4, 5370480), (5, 4296384), (6, 3580320), (8, 2685240), (9, 2386880), (10, 2148192), (12, 1790160), (15, 1432128), (16, 1342620), (18, 1193440), (20, 1074096), (24, 895080), (30, 716064), (32, 671310), (36, 596720), (40, 537048), (45, 477376), (48, 447540), (60, 358032), (64, 335655), (72, 298360), (80, 268524), (90, 238688), (96, 223770), (120, 179016), (144, 149180), (160, 134262), (180, 119344), (192, 111885), (240, 89508), (288, 74590), (320, 67131), (360, 59672), (480, 44754), (576, 37295), (720, 29836), (960, 22377), (1440, 14918), (2880, 7459)]