19970619

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{1039}}^1$

素因数の和:1234

約数の個数: 16

約数和(自身を含む): 27456000

約数和(自身を除く): 7485381

約数列:

[1, 3, 43, 129, 149, 447, 1039, 3117, 6407, 19221, 44677, 134031, 154811, 464433, 6656873, 19970619]

約数ペア:

[(1, 19970619), (3, 6656873), (43, 464433), (129, 154811), (149, 134031), (447, 44677), (1039, 19221), (3117, 6407)]