21000960

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{1823}}^1$

素因数の和:1850

約数の個数: 108

約数和(自身を含む): 72700992

約数和(自身を除く): 51700032

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, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1823, 1920, 2304, 2880, 3646, 3840, 5469, 5760, 7292, 9115, 10938, 11520, 14584, 16407, 18230, 21876, 27345, 29168, 32814, 36460, 43752, 54690, 58336, 65628, 72920, 82035, 87504, 109380, 116672, 131256, 145840, 164070, 175008, 218760, 233344, 262512, 291680, 328140, 350016, 437520, 466688, 525024, 583360, 656280, 700032, 875040, 1050048, 1166720, 1312560, 1400064, 1750080, 2100096, 2333440, 2625120, 3500160, 4200192, 5250240, 7000320, 10500480, 21000960]

約数ペア:

[(1, 21000960), (2, 10500480), (3, 7000320), (4, 5250240), (5, 4200192), (6, 3500160), (8, 2625120), (9, 2333440), (10, 2100096), (12, 1750080), (15, 1400064), (16, 1312560), (18, 1166720), (20, 1050048), (24, 875040), (30, 700032), (32, 656280), (36, 583360), (40, 525024), (45, 466688), (48, 437520), (60, 350016), (64, 328140), (72, 291680), (80, 262512), (90, 233344), (96, 218760), (120, 175008), (128, 164070), (144, 145840), (160, 131256), (180, 116672), (192, 109380), (240, 87504), (256, 82035), (288, 72920), (320, 65628), (360, 58336), (384, 54690), (480, 43752), (576, 36460), (640, 32814), (720, 29168), (768, 27345), (960, 21876), (1152, 18230), (1280, 16407), (1440, 14584), (1823, 11520), (1920, 10938), (2304, 9115), (2880, 7292), (3646, 5760), (3840, 5469)]