21132320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12007}}^1$

素因数の和:12033

約数の個数: 48

約数和(自身を含む): 54468288

約数和(自身を除く): 33335968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 12007, 24014, 48028, 60035, 96056, 120070, 132077, 192112, 240140, 264154, 384224, 480280, 528308, 660385, 960560, 1056616, 1320770, 1921120, 2113232, 2641540, 4226464, 5283080, 10566160, 21132320]

約数ペア:

[(1, 21132320), (2, 10566160), (4, 5283080), (5, 4226464), (8, 2641540), (10, 2113232), (11, 1921120), (16, 1320770), (20, 1056616), (22, 960560), (32, 660385), (40, 528308), (44, 480280), (55, 384224), (80, 264154), (88, 240140), (110, 192112), (160, 132077), (176, 120070), (220, 96056), (352, 60035), (440, 48028), (880, 24014), (1760, 12007)]