21226380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50539}}^1$

素因数の和:50558

約数の個数: 48

約数和(自身を含む): 67925760

約数和(自身を除く): 46699380

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, 50539, 101078, 151617, 202156, 252695, 303234, 353773, 505390, 606468, 707546, 758085, 1010780, 1061319, 1415092, 1516170, 1768865, 2122638, 3032340, 3537730, 4245276, 5306595, 7075460, 10613190, 21226380]

約数ペア:

[(1, 21226380), (2, 10613190), (3, 7075460), (4, 5306595), (5, 4245276), (6, 3537730), (7, 3032340), (10, 2122638), (12, 1768865), (14, 1516170), (15, 1415092), (20, 1061319), (21, 1010780), (28, 758085), (30, 707546), (35, 606468), (42, 505390), (60, 353773), (70, 303234), (84, 252695), (105, 202156), (140, 151617), (210, 101078), (420, 50539)]