21438060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{51043}}^1$

素因数の和:51062

約数の個数: 48

約数和(自身を含む): 68603136

約数和(自身を除く): 47165076

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, 51043, 102086, 153129, 204172, 255215, 306258, 357301, 510430, 612516, 714602, 765645, 1020860, 1071903, 1429204, 1531290, 1786505, 2143806, 3062580, 3573010, 4287612, 5359515, 7146020, 10719030, 21438060]

約数ペア:

[(1, 21438060), (2, 10719030), (3, 7146020), (4, 5359515), (5, 4287612), (6, 3573010), (7, 3062580), (10, 2143806), (12, 1786505), (14, 1531290), (15, 1429204), (20, 1071903), (21, 1020860), (28, 765645), (30, 714602), (35, 612516), (42, 510430), (60, 357301), (70, 306258), (84, 255215), (105, 204172), (140, 153129), (210, 102086), (420, 51043)]