18965001

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 9775095

約数列:

[1, 3, 11, 33, 41, 107, 123, 131, 321, 393, 451, 1177, 1353, 1441, 3531, 4323, 4387, 5371, 13161, 14017, 16113, 42051, 48257, 59081, 144771, 154187, 177243, 462561, 574697, 1724091, 6321667, 18965001]

約数ペア:

[(1, 18965001), (3, 6321667), (11, 1724091), (33, 574697), (41, 462561), (107, 177243), (123, 154187), (131, 144771), (321, 59081), (393, 48257), (451, 42051), (1177, 16113), (1353, 14017), (1441, 13161), (3531, 5371), (4323, 4387)]