218744169

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1951}}^1$

素因数の和:2261

約数の個数: 32

約数和(自身を含む): 352296960

約数和(自身を除く): 133552791

約数列:

[1, 3, 7, 19, 21, 57, 133, 281, 399, 843, 1951, 1967, 5339, 5853, 5901, 13657, 16017, 37069, 37373, 40971, 111207, 112119, 259483, 548231, 778449, 1644693, 3837617, 10416389, 11512851, 31249167, 72914723, 218744169]

約数ペア:

[(1, 218744169), (3, 72914723), (7, 31249167), (19, 11512851), (21, 10416389), (57, 3837617), (133, 1644693), (281, 778449), (399, 548231), (843, 259483), (1951, 112119), (1967, 111207), (5339, 40971), (5853, 37373), (5901, 37069), (13657, 16017)]