55291815

素因数分解:

$3^4\times 5^1\times {\mathrm{136523}}^1$

素因数の和:136540

約数の個数: 20

約数和(自身を含む): 99116424

約数和(自身を除く): 43824609

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 136523, 409569, 682615, 1228707, 2047845, 3686121, 6143535, 11058363, 18430605, 55291815]

約数ペア:

[(1, 55291815), (3, 18430605), (5, 11058363), (9, 6143535), (15, 3686121), (27, 2047845), (45, 1228707), (81, 682615), (135, 409569), (405, 136523)]