21582309

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{54091}}^1$

素因数の和:54120

約数の個数: 16

約数和(自身を含む): 34618880

約数和(自身を除く): 13036571

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 54091, 162273, 378637, 1027729, 1135911, 3083187, 7194103, 21582309]

約数ペア:

[(1, 21582309), (3, 7194103), (7, 3083187), (19, 1135911), (21, 1027729), (57, 378637), (133, 162273), (399, 54091)]