18820284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:962

約数の個数: 48

約数和(自身を含む): 50400000

約数和(自身を除く): 31579716

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 449, 499, 898, 998, 1347, 1497, 1796, 1996, 2694, 2994, 3143, 3493, 5388, 5988, 6286, 6986, 9429, 10479, 12572, 13972, 18858, 20958, 37716, 41916, 224051, 448102, 672153, 896204, 1344306, 1568357, 2688612, 3136714, 4705071, 6273428, 9410142, 18820284]

約数ペア:

[(1, 18820284), (2, 9410142), (3, 6273428), (4, 4705071), (6, 3136714), (7, 2688612), (12, 1568357), (14, 1344306), (21, 896204), (28, 672153), (42, 448102), (84, 224051), (449, 41916), (499, 37716), (898, 20958), (998, 18858), (1347, 13972), (1497, 12572), (1796, 10479), (1996, 9429), (2694, 6986), (2994, 6286), (3143, 5988), (3493, 5388)]