27811791

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7237}}^1$

素因数の和:7311

約数の個数: 24

約数和(自身を含む): 46670624

約数和(自身を除く): 18858833

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 7237, 21711, 50659, 65133, 151977, 441457, 455931, 1324371, 3090199, 3973113, 9270597, 27811791]

約数ペア:

[(1, 27811791), (3, 9270597), (7, 3973113), (9, 3090199), (21, 1324371), (61, 455931), (63, 441457), (183, 151977), (427, 65133), (549, 50659), (1281, 21711), (3843, 7237)]