21718503

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47317}}^1$

素因数の和:47343

約数の個数: 16

約数和(自身を含む): 34068960

約数和(自身を除く): 12350457

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47317, 141951, 425853, 804389, 1277559, 2413167, 7239501, 21718503]

約数ペア:

[(1, 21718503), (3, 7239501), (9, 2413167), (17, 1277559), (27, 804389), (51, 425853), (153, 141951), (459, 47317)]