16985259

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1399}}^1$

素因数の和:1495

約数の個数: 24

約数和(自身を含む): 26208000

約数和(自身を除く): 9222741

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 1399, 4047, 4197, 12141, 12591, 26581, 79743, 99329, 239229, 297987, 893961, 1887251, 5661753, 16985259]

約数ペア:

[(1, 16985259), (3, 5661753), (9, 1887251), (19, 893961), (57, 297987), (71, 239229), (171, 99329), (213, 79743), (639, 26581), (1349, 12591), (1399, 12141), (4047, 4197)]