21084560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1637}}^1$

素因数の和:1680

約数の個数: 80

約数和(自身を含む): 58496256

約数和(自身を除く): 37411696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1637, 1840, 2576, 3220, 3274, 6440, 6548, 8185, 11459, 12880, 13096, 16370, 22918, 26192, 32740, 37651, 45836, 57295, 65480, 75302, 91672, 114590, 130960, 150604, 183344, 188255, 229180, 263557, 301208, 376510, 458360, 527114, 602416, 753020, 916720, 1054228, 1317785, 1506040, 2108456, 2635570, 3012080, 4216912, 5271140, 10542280, 21084560]

約数ペア:

[(1, 21084560), (2, 10542280), (4, 5271140), (5, 4216912), (7, 3012080), (8, 2635570), (10, 2108456), (14, 1506040), (16, 1317785), (20, 1054228), (23, 916720), (28, 753020), (35, 602416), (40, 527114), (46, 458360), (56, 376510), (70, 301208), (80, 263557), (92, 229180), (112, 188255), (115, 183344), (140, 150604), (161, 130960), (184, 114590), (230, 91672), (280, 75302), (322, 65480), (368, 57295), (460, 45836), (560, 37651), (644, 32740), (805, 26192), (920, 22918), (1288, 16370), (1610, 13096), (1637, 12880), (1840, 11459), (2576, 8185), (3220, 6548), (3274, 6440)]