21209025

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{4793}}^1$

素因数の和:4865

約数の個数: 24

約数和(自身を含む): 35667360

約数和(自身を除く): 14458335

約数列:

[1, 3, 5, 15, 25, 59, 75, 177, 295, 885, 1475, 4425, 4793, 14379, 23965, 71895, 119825, 282787, 359475, 848361, 1413935, 4241805, 7069675, 21209025]

約数ペア:

[(1, 21209025), (3, 7069675), (5, 4241805), (15, 1413935), (25, 848361), (59, 359475), (75, 282787), (177, 119825), (295, 71895), (885, 23965), (1475, 14379), (4425, 4793)]