21139095

素因数分解:

$3^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1907}}^1$

素因数の和:2654

約数の個数: 16

約数和(自身を含む): 33886080

約数和(自身を除く): 12746985

約数列:

[1, 3, 5, 15, 739, 1907, 2217, 3695, 5721, 9535, 11085, 28605, 1409273, 4227819, 7046365, 21139095]

約数ペア:

[(1, 21139095), (3, 7046365), (5, 4227819), (15, 1409273), (739, 28605), (1907, 11085), (2217, 9535), (3695, 5721)]