18391373

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{967}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 26019840

約数和(自身を除く): 7628467

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 967, 1001, 1463, 1729, 2717, 6769, 10637, 12571, 18373, 19019, 74459, 87997, 128611, 138281, 202103, 238849, 967967, 1414721, 1671943, 2627339, 18391373]

約数ペア:

[(1, 18391373), (7, 2627339), (11, 1671943), (13, 1414721), (19, 967967), (77, 238849), (91, 202103), (133, 138281), (143, 128611), (209, 87997), (247, 74459), (967, 19019), (1001, 18373), (1463, 12571), (1729, 10637), (2717, 6769)]