18964231

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 24494400

約数和(自身を除く): 5530169

約数列:

[1, 11, 13, 17, 29, 143, 187, 221, 269, 319, 377, 493, 2431, 2959, 3497, 4147, 4573, 5423, 6409, 7801, 38467, 50303, 59449, 70499, 85811, 101413, 132617, 653939, 1115543, 1458787, 1724021, 18964231]

約数ペア:

[(1, 18964231), (11, 1724021), (13, 1458787), (17, 1115543), (29, 653939), (143, 132617), (187, 101413), (221, 85811), (269, 70499), (319, 59449), (377, 50303), (493, 38467), (2431, 7801), (2959, 6409), (3497, 5423), (4147, 4573)]