20996510

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{617}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 39245472

約数和(自身を除く): 18248962

約数列:

[1, 2, 5, 10, 41, 82, 83, 166, 205, 410, 415, 617, 830, 1234, 3085, 3403, 6170, 6806, 17015, 25297, 34030, 50594, 51211, 102422, 126485, 252970, 256055, 512110, 2099651, 4199302, 10498255, 20996510]

約数ペア:

[(1, 20996510), (2, 10498255), (5, 4199302), (10, 2099651), (41, 512110), (82, 256055), (83, 252970), (166, 126485), (205, 102422), (410, 51211), (415, 50594), (617, 34030), (830, 25297), (1234, 17015), (3085, 6806), (3403, 6170)]