21395716

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{1559}}^1$

素因数の和:1683

約数の個数: 24

約数和(自身を含む): 38787840

約数和(自身を除く): 17392124

約数列:

[1, 2, 4, 47, 73, 94, 146, 188, 292, 1559, 3118, 3431, 6236, 6862, 13724, 73273, 113807, 146546, 227614, 293092, 455228, 5348929, 10697858, 21395716]

約数ペア:

[(1, 21395716), (2, 10697858), (4, 5348929), (47, 455228), (73, 293092), (94, 227614), (146, 146546), (188, 113807), (292, 73273), (1559, 13724), (3118, 6862), (3431, 6236)]