21287613537

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{46378243}}^1$

素因数の和:46378269

約数の個数: 16

約数和(自身を含む): 33392335680

約数和(自身を除く): 12104722143

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 46378243, 139134729, 417404187, 788430131, 1252212561, 2365290393, 7095871179, 21287613537]

約数ペア:

[(1, 21287613537), (3, 7095871179), (9, 2365290393), (17, 1252212561), (27, 788430131), (51, 417404187), (153, 139134729), (459, 46378243)]