27982731

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{761}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 45646848

約数和(自身を除く): 17664117

約数列:

[1, 3, 7, 17, 21, 51, 103, 119, 309, 357, 721, 761, 1751, 2163, 2283, 5253, 5327, 12257, 12937, 15981, 36771, 38811, 78383, 90559, 235149, 271677, 548681, 1332511, 1646043, 3997533, 9327577, 27982731]

約数ペア:

[(1, 27982731), (3, 9327577), (7, 3997533), (17, 1646043), (21, 1332511), (51, 548681), (103, 271677), (119, 235149), (309, 90559), (357, 78383), (721, 38811), (761, 36771), (1751, 15981), (2163, 12937), (2283, 12257), (5253, 5327)]