19915299

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1741}}^1$

素因数の和:1819

約数の個数: 24

約数和(自身を含む): 30436224

約数和(自身を除く): 10520925

約数列:

[1, 3, 9, 31, 41, 93, 123, 279, 369, 1271, 1741, 3813, 5223, 11439, 15669, 53971, 71381, 161913, 214143, 485739, 642429, 2212811, 6638433, 19915299]

約数ペア:

[(1, 19915299), (3, 6638433), (9, 2212811), (31, 642429), (41, 485739), (93, 214143), (123, 161913), (279, 71381), (369, 53971), (1271, 15669), (1741, 11439), (3813, 5223)]