21210504

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{503}}^1$

素因数の和:770

約数の個数: 64

約数和(自身を含む): 60963840

約数和(自身を除く): 39753336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 251, 502, 503, 753, 1004, 1006, 1506, 1509, 1757, 2008, 2012, 3012, 3018, 3514, 3521, 4024, 5271, 6024, 6036, 7028, 7042, 10542, 10563, 12072, 14056, 14084, 21084, 21126, 28168, 42168, 42252, 84504, 126253, 252506, 378759, 505012, 757518, 883771, 1010024, 1515036, 1767542, 2651313, 3030072, 3535084, 5302626, 7070168, 10605252, 21210504]

約数ペア:

[(1, 21210504), (2, 10605252), (3, 7070168), (4, 5302626), (6, 3535084), (7, 3030072), (8, 2651313), (12, 1767542), (14, 1515036), (21, 1010024), (24, 883771), (28, 757518), (42, 505012), (56, 378759), (84, 252506), (168, 126253), (251, 84504), (502, 42252), (503, 42168), (753, 28168), (1004, 21126), (1006, 21084), (1506, 14084), (1509, 14056), (1757, 12072), (2008, 10563), (2012, 10542), (3012, 7042), (3018, 7028), (3514, 6036), (3521, 6024), (4024, 5271)]