199498117

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{307}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 254304512

約数和(自身を除く): 54806395

約数列:

[1, 7, 13, 37, 91, 193, 259, 307, 481, 1351, 2149, 2509, 3367, 3991, 7141, 11359, 17563, 27937, 49987, 59251, 79513, 92833, 147667, 414757, 649831, 770263, 1033669, 2192287, 5391841, 15346009, 28499731, 199498117]

約数ペア:

[(1, 199498117), (7, 28499731), (13, 15346009), (37, 5391841), (91, 2192287), (193, 1033669), (259, 770263), (307, 649831), (481, 414757), (1351, 147667), (2149, 92833), (2509, 79513), (3367, 59251), (3991, 49987), (7141, 27937), (11359, 17563)]