21185420340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50441477}}^1$

素因数の和:50441496

約数の個数: 48

約数和(自身を含む): 67793346432

約数和(自身を除く): 46607926092

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, 50441477, 100882954, 151324431, 201765908, 252207385, 302648862, 353090339, 504414770, 605297724, 706180678, 756622155, 1008829540, 1059271017, 1412361356, 1513244310, 1765451695, 2118542034, 3026488620, 3530903390, 4237084068, 5296355085, 7061806780, 10592710170, 21185420340]

約数ペア:

[(1, 21185420340), (2, 10592710170), (3, 7061806780), (4, 5296355085), (5, 4237084068), (6, 3530903390), (7, 3026488620), (10, 2118542034), (12, 1765451695), (14, 1513244310), (15, 1412361356), (20, 1059271017), (21, 1008829540), (28, 756622155), (30, 706180678), (35, 605297724), (42, 504414770), (60, 353090339), (70, 302648862), (84, 252207385), (105, 201765908), (140, 151324431), (210, 100882954), (420, 50441477)]