21803180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9161}}^1$

素因数の和:9194

約数の個数: 48

約数和(自身を含む): 55411776

約数和(自身を除く): 33608596

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 9161, 18322, 36644, 45805, 64127, 91610, 128254, 155737, 183220, 256508, 311474, 320635, 622948, 641270, 778685, 1090159, 1282540, 1557370, 2180318, 3114740, 4360636, 5450795, 10901590, 21803180]

約数ペア:

[(1, 21803180), (2, 10901590), (4, 5450795), (5, 4360636), (7, 3114740), (10, 2180318), (14, 1557370), (17, 1282540), (20, 1090159), (28, 778685), (34, 641270), (35, 622948), (68, 320635), (70, 311474), (85, 256508), (119, 183220), (140, 155737), (170, 128254), (238, 91610), (340, 64127), (476, 45805), (595, 36644), (1190, 18322), (2380, 9161)]