642147

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:115

約数の個数: 24

約数和(自身を含む): 989520

約数和(自身を除く): 347373

約数列:

[1, 3, 11, 29, 33, 61, 87, 121, 183, 319, 363, 671, 957, 1769, 2013, 3509, 5307, 7381, 10527, 19459, 22143, 58377, 214049, 642147]

約数ペア:

[(1, 642147), (3, 214049), (11, 58377), (29, 22143), (33, 19459), (61, 10527), (87, 7381), (121, 5307), (183, 3509), (319, 2013), (363, 1769), (671, 957)]