20910516

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1009}}^1$

素因数の和:1184

約数の個数: 48

約数和(自身を含む): 53618880

約数和(自身を除く): 32708364

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 157, 314, 471, 628, 942, 1009, 1727, 1884, 2018, 3027, 3454, 4036, 5181, 6054, 6908, 10362, 11099, 12108, 20724, 22198, 33297, 44396, 66594, 133188, 158413, 316826, 475239, 633652, 950478, 1742543, 1900956, 3485086, 5227629, 6970172, 10455258, 20910516]

約数ペア:

[(1, 20910516), (2, 10455258), (3, 6970172), (4, 5227629), (6, 3485086), (11, 1900956), (12, 1742543), (22, 950478), (33, 633652), (44, 475239), (66, 316826), (132, 158413), (157, 133188), (314, 66594), (471, 44396), (628, 33297), (942, 22198), (1009, 20724), (1727, 12108), (1884, 11099), (2018, 10362), (3027, 6908), (3454, 6054), (4036, 5181)]