21251580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50599}}^1$

素因数の和:50618

約数の個数: 48

約数和(自身を含む): 68006400

約数和(自身を除く): 46754820

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, 50599, 101198, 151797, 202396, 252995, 303594, 354193, 505990, 607188, 708386, 758985, 1011980, 1062579, 1416772, 1517970, 1770965, 2125158, 3035940, 3541930, 4250316, 5312895, 7083860, 10625790, 21251580]

約数ペア:

[(1, 21251580), (2, 10625790), (3, 7083860), (4, 5312895), (5, 4250316), (6, 3541930), (7, 3035940), (10, 2125158), (12, 1770965), (14, 1517970), (15, 1416772), (20, 1062579), (21, 1011980), (28, 758985), (30, 708386), (35, 607188), (42, 505990), (60, 354193), (70, 303594), (84, 252995), (105, 202396), (140, 151797), (210, 101198), (420, 50599)]