12918157

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 16773120

約数和(自身を除く): 3854963

約数列:

[1, 7, 19, 23, 41, 103, 133, 161, 287, 437, 721, 779, 943, 1957, 2369, 3059, 4223, 5453, 6601, 13699, 16583, 17917, 29561, 45011, 80237, 97129, 125419, 315077, 561659, 679903, 1845451, 12918157]

約数ペア:

[(1, 12918157), (7, 1845451), (19, 679903), (23, 561659), (41, 315077), (103, 125419), (133, 97129), (161, 80237), (287, 45011), (437, 29561), (721, 17917), (779, 16583), (943, 13699), (1957, 6601), (2369, 5453), (3059, 4223)]