207858819

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139409}}^1$

素因数の和:139490

約数の個数: 16

約数和(自身を含む): 321200640

約数和(自身を除く): 113341821

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 139409, 418227, 975863, 2927589, 9898039, 29694117, 69286273, 207858819]

約数ペア:

[(1, 207858819), (3, 69286273), (7, 29694117), (21, 9898039), (71, 2927589), (213, 975863), (497, 418227), (1491, 139409)]