21039095

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54647}}^1$

素因数の和:54670

約数の個数: 16

約数和(自身を含む): 31477248

約数和(自身を除く): 10438153

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54647, 273235, 382529, 601117, 1912645, 3005585, 4207819, 21039095]

約数ペア:

[(1, 21039095), (5, 4207819), (7, 3005585), (11, 1912645), (35, 601117), (55, 382529), (77, 273235), (385, 54647)]