21858957

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{47623}}^1$

素因数の和:47649

約数の個数: 16

約数和(自身を含む): 34289280

約数和(自身を除く): 12430323

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 47623, 142869, 428607, 809591, 1285821, 2428773, 7286319, 21858957]

約数ペア:

[(1, 21858957), (3, 7286319), (9, 2428773), (17, 1285821), (27, 809591), (51, 428607), (153, 142869), (459, 47623)]