21054180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50129}}^1$

素因数の和:50148

約数の個数: 48

約数和(自身を含む): 67374720

約数和(自身を除く): 46320540

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, 50129, 100258, 150387, 200516, 250645, 300774, 350903, 501290, 601548, 701806, 751935, 1002580, 1052709, 1403612, 1503870, 1754515, 2105418, 3007740, 3509030, 4210836, 5263545, 7018060, 10527090, 21054180]

約数ペア:

[(1, 21054180), (2, 10527090), (3, 7018060), (4, 5263545), (5, 4210836), (6, 3509030), (7, 3007740), (10, 2105418), (12, 1754515), (14, 1503870), (15, 1403612), (20, 1052709), (21, 1002580), (28, 751935), (30, 701806), (35, 601548), (42, 501290), (60, 350903), (70, 300774), (84, 250645), (105, 200516), (140, 150387), (210, 100258), (420, 50129)]