19651959

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{683}}^1$

素因数の和:851

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 10225161

約数列:

[1, 3, 9, 23, 69, 139, 207, 417, 683, 1251, 2049, 3197, 6147, 9591, 15709, 28773, 47127, 94937, 141381, 284811, 854433, 2183551, 6550653, 19651959]

約数ペア:

[(1, 19651959), (3, 6550653), (9, 2183551), (23, 854433), (69, 284811), (139, 141381), (207, 94937), (417, 47127), (683, 28773), (1251, 15709), (2049, 9591), (3197, 6147)]