20609218

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31321}}^1$

素因数の和:31377

約数の個数: 16

約数和(自身を含む): 36082944

約数和(自身を除く): 15473726

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 31321, 62642, 219247, 438494, 1472087, 2944174, 10304609, 20609218]

約数ペア:

[(1, 20609218), (2, 10304609), (7, 2944174), (14, 1472087), (47, 438494), (94, 219247), (329, 62642), (658, 31321)]