81721144

素因数分解:

$2^3\times {\mathrm{211}}^1\times {\mathrm{48413}}^1$

素因数の和:48630

約数の個数: 16

約数和(自身を含む): 153956520

約数和(自身を除く): 72235376

約数列:

[1, 2, 4, 8, 211, 422, 844, 1688, 48413, 96826, 193652, 387304, 10215143, 20430286, 40860572, 81721144]

約数ペア:

[(1, 81721144), (2, 40860572), (4, 20430286), (8, 10215143), (211, 387304), (422, 193652), (844, 96826), (1688, 48413)]