18714718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 31882752

約数和(自身を除く): 13168034

約数列:

[1, 2, 11, 22, 43, 73, 86, 146, 271, 473, 542, 803, 946, 1606, 2981, 3139, 5962, 6278, 11653, 19783, 23306, 34529, 39566, 69058, 128183, 217613, 256366, 435226, 850669, 1701338, 9357359, 18714718]

約数ペア:

[(1, 18714718), (2, 9357359), (11, 1701338), (22, 850669), (43, 435226), (73, 256366), (86, 217613), (146, 128183), (271, 69058), (473, 39566), (542, 34529), (803, 23306), (946, 19783), (1606, 11653), (2981, 6278), (3139, 5962)]