21074538947

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{947}}^1\times {\mathrm{9323}}^1$

素因数の和:10319

約数の個数: 32

約数和(自身を含む): 27153874944

約数和(自身を除く): 6079335997

約数列:

[1, 7, 11, 31, 77, 217, 341, 947, 2387, 6629, 9323, 10417, 29357, 65261, 72919, 102553, 205499, 289013, 322927, 717871, 2023091, 2260489, 3179143, 8828881, 22254001, 61802167, 97117691, 273695311, 679823837, 1915867177, 3010648421, 21074538947]

約数ペア:

[(1, 21074538947), (7, 3010648421), (11, 1915867177), (31, 679823837), (77, 273695311), (217, 97117691), (341, 61802167), (947, 22254001), (2387, 8828881), (6629, 3179143), (9323, 2260489), (10417, 2023091), (29357, 717871), (65261, 322927), (72919, 289013), (102553, 205499)]