21571354

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{21107}}^1$

素因数の和:21189

約数の個数: 16

約数和(自身を含む): 37487808

約数和(自身を除く): 15916454

約数列:

[1, 2, 7, 14, 73, 146, 511, 1022, 21107, 42214, 147749, 295498, 1540811, 3081622, 10785677, 21571354]

約数ペア:

[(1, 21571354), (2, 10785677), (7, 3081622), (14, 1540811), (73, 295498), (146, 147749), (511, 42214), (1022, 21107)]