21061740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50147}}^1$

素因数の和:50166

約数の個数: 48

約数和(自身を含む): 67398912

約数和(自身を除く): 46337172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50147, 100294, 150441, 200588, 250735, 300882, 351029, 501470, 601764, 702058, 752205, 1002940, 1053087, 1404116, 1504410, 1755145, 2106174, 3008820, 3510290, 4212348, 5265435, 7020580, 10530870, 21061740]

約数ペア:

[(1, 21061740), (2, 10530870), (3, 7020580), (4, 5265435), (5, 4212348), (6, 3510290), (7, 3008820), (10, 2106174), (12, 1755145), (14, 1504410), (15, 1404116), (20, 1053087), (21, 1002940), (28, 752205), (30, 702058), (35, 601764), (42, 501470), (60, 351029), (70, 300882), (84, 250735), (105, 200588), (140, 150441), (210, 100294), (420, 50147)]