21123840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5501}}^1$

素因数の和:5525

約数の個数: 72

約数和(自身を含む): 67476528

約数和(自身を除く): 46352688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5501, 11002, 16503, 22004, 27505, 33006, 44008, 55010, 66012, 82515, 88016, 110020, 132024, 165030, 176032, 220040, 264048, 330060, 352064, 440080, 528096, 660120, 704128, 880160, 1056192, 1320240, 1408256, 1760320, 2112384, 2640480, 3520640, 4224768, 5280960, 7041280, 10561920, 21123840]

約数ペア:

[(1, 21123840), (2, 10561920), (3, 7041280), (4, 5280960), (5, 4224768), (6, 3520640), (8, 2640480), (10, 2112384), (12, 1760320), (15, 1408256), (16, 1320240), (20, 1056192), (24, 880160), (30, 704128), (32, 660120), (40, 528096), (48, 440080), (60, 352064), (64, 330060), (80, 264048), (96, 220040), (120, 176032), (128, 165030), (160, 132024), (192, 110020), (240, 88016), (256, 82515), (320, 66012), (384, 55010), (480, 44008), (640, 33006), (768, 27505), (960, 22004), (1280, 16503), (1920, 11002), (3840, 5501)]