21049920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7309}}^1$

素因数の和:7332

約数の個数: 84

約数和(自身を含む): 72412860

約数和(自身を除く): 51362940

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, 7309, 14618, 21927, 29236, 36545, 43854, 58472, 65781, 73090, 87708, 109635, 116944, 131562, 146180, 175416, 219270, 233888, 263124, 292360, 328905, 350832, 438540, 467776, 526248, 584720, 657810, 701664, 877080, 1052496, 1169440, 1315620, 1403328, 1754160, 2104992, 2338880, 2631240, 3508320, 4209984, 5262480, 7016640, 10524960, 21049920]

約数ペア:

[(1, 21049920), (2, 10524960), (3, 7016640), (4, 5262480), (5, 4209984), (6, 3508320), (8, 2631240), (9, 2338880), (10, 2104992), (12, 1754160), (15, 1403328), (16, 1315620), (18, 1169440), (20, 1052496), (24, 877080), (30, 701664), (32, 657810), (36, 584720), (40, 526248), (45, 467776), (48, 438540), (60, 350832), (64, 328905), (72, 292360), (80, 263124), (90, 233888), (96, 219270), (120, 175416), (144, 146180), (160, 131562), (180, 116944), (192, 109635), (240, 87708), (288, 73090), (320, 65781), (360, 58472), (480, 43854), (576, 36545), (720, 29236), (960, 21927), (1440, 14618), (2880, 7309)]