20357218

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{19919}}^1$

素因数の和:20001

約数の個数: 16

約数和(自身を含む): 35377920

約数和(自身を除く): 15020702

約数列:

[1, 2, 7, 14, 73, 146, 511, 1022, 19919, 39838, 139433, 278866, 1454087, 2908174, 10178609, 20357218]

約数ペア:

[(1, 20357218), (2, 10178609), (7, 2908174), (14, 1454087), (73, 278866), (146, 139433), (511, 39838), (1022, 19919)]