21071200

素因数分解:

$2^5\times 5^2\times {\mathrm{26339}}^1$

素因数の和:26359

約数の個数: 36

約数和(自身を含む): 51442020

約数和(自身を除く): 30370820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26339, 52678, 105356, 131695, 210712, 263390, 421424, 526780, 658475, 842848, 1053560, 1316950, 2107120, 2633900, 4214240, 5267800, 10535600, 21071200]

約数ペア:

[(1, 21071200), (2, 10535600), (4, 5267800), (5, 4214240), (8, 2633900), (10, 2107120), (16, 1316950), (20, 1053560), (25, 842848), (32, 658475), (40, 526780), (50, 421424), (80, 263390), (100, 210712), (160, 131695), (200, 105356), (400, 52678), (800, 26339)]