209741399

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{8171}}^1$

素因数の和:8390

約数の個数: 16

約数和(自身を含む): 253658880

約数和(自身を除く): 43917481

約数列:

[1, 7, 19, 133, 193, 1351, 3667, 8171, 25669, 57197, 155249, 1086743, 1577003, 11039021, 29963057, 209741399]

約数ペア:

[(1, 209741399), (7, 29963057), (19, 11039021), (133, 1577003), (193, 1086743), (1351, 155249), (3667, 57197), (8171, 25669)]