21430089

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11503}}^1$

素因数の和:11538

約数の個数: 20

約数和(自身を含む): 33407616

約数和(自身を除く): 11977527

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11503, 34509, 103527, 264569, 310581, 793707, 931743, 2381121, 7143363, 21430089]

約数ペア:

[(1, 21430089), (3, 7143363), (9, 2381121), (23, 931743), (27, 793707), (69, 310581), (81, 264569), (207, 103527), (621, 34509), (1863, 11503)]