21254608

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{5051}}^1$

素因数の和:5322

約数の個数: 20

約数和(自身を含む): 41345568

約数和(自身を除く): 20090960

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 5051, 10102, 20204, 40408, 80816, 1328413, 2656826, 5313652, 10627304, 21254608]

約数ペア:

[(1, 21254608), (2, 10627304), (4, 5313652), (8, 2656826), (16, 1328413), (263, 80816), (526, 40408), (1052, 20204), (2104, 10102), (4208, 5051)]