18697642

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{431}}^1$

素因数の和:741

約数の個数: 16

約数和(自身を含む): 28512000

約数和(自身を除く): 9814358

約数列:

[1, 2, 109, 199, 218, 398, 431, 862, 21691, 43382, 46979, 85769, 93958, 171538, 9348821, 18697642]

約数ペア:

[(1, 18697642), (2, 9348821), (109, 171538), (199, 93958), (218, 85769), (398, 46979), (431, 43382), (862, 21691)]