1690389

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:562

約数の個数: 20

約数和(自身を含む): 2591820

約数和(自身を除く): 901431

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 509, 1107, 1527, 3321, 4581, 13743, 20869, 41229, 62607, 187821, 563463, 1690389]

約数ペア:

[(1, 1690389), (3, 563463), (9, 187821), (27, 62607), (41, 41229), (81, 20869), (123, 13743), (369, 4581), (509, 3321), (1107, 1527)]