21440316

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1123}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 52621184

約数和(自身を除く): 31180868

約数列:

[1, 2, 3, 4, 6, 12, 37, 43, 74, 86, 111, 129, 148, 172, 222, 258, 444, 516, 1123, 1591, 2246, 3182, 3369, 4492, 4773, 6364, 6738, 9546, 13476, 19092, 41551, 48289, 83102, 96578, 124653, 144867, 166204, 193156, 249306, 289734, 498612, 579468, 1786693, 3573386, 5360079, 7146772, 10720158, 21440316]

約数ペア:

[(1, 21440316), (2, 10720158), (3, 7146772), (4, 5360079), (6, 3573386), (12, 1786693), (37, 579468), (43, 498612), (74, 289734), (86, 249306), (111, 193156), (129, 166204), (148, 144867), (172, 124653), (222, 96578), (258, 83102), (444, 48289), (516, 41551), (1123, 19092), (1591, 13476), (2246, 9546), (3182, 6738), (3369, 6364), (4492, 4773)]