217820979

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{311}}^1\times {\mathrm{1319}}^1$

素因数の和:1695

約数の個数: 24

約数和(自身を含む): 321235200

約数和(自身を除く): 103414221

約数列:

[1, 3, 9, 59, 177, 311, 531, 933, 1319, 2799, 3957, 11871, 18349, 55047, 77821, 165141, 233463, 410209, 700389, 1230627, 3691881, 24202331, 72606993, 217820979]

約数ペア:

[(1, 217820979), (3, 72606993), (9, 24202331), (59, 3691881), (177, 1230627), (311, 700389), (531, 410209), (933, 233463), (1319, 165141), (2799, 77821), (3957, 55047), (11871, 18349)]