66681356

素因数分解:

$2^2\times 7^2\times {\mathrm{340211}}^1$

素因数の和:340229

約数の個数: 18

約数和(自身を含む): 135744588

約数和(自身を除く): 69063232

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 340211, 680422, 1360844, 2381477, 4762954, 9525908, 16670339, 33340678, 66681356]

約数ペア:

[(1, 66681356), (2, 33340678), (4, 16670339), (7, 9525908), (14, 4762954), (28, 2381477), (49, 1360844), (98, 680422), (196, 340211)]