18970708

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{278981}}^1$

素因数の和:279002

約数の個数: 12

約数和(自身を含む): 35151732

約数和(自身を除く): 16181024

約数列:

[1, 2, 4, 17, 34, 68, 278981, 557962, 1115924, 4742677, 9485354, 18970708]

約数ペア:

[(1, 18970708), (2, 9485354), (4, 4742677), (17, 1115924), (34, 557962), (68, 278981)]