19886141

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 25142400

約数和(自身を除く): 5256259

約数列:

[1, 11, 17, 19, 29, 187, 193, 209, 319, 323, 493, 551, 2123, 3281, 3553, 3667, 5423, 5597, 6061, 9367, 36091, 40337, 61567, 62339, 95149, 103037, 106343, 685729, 1046639, 1169773, 1807831, 19886141]

約数ペア:

[(1, 19886141), (11, 1807831), (17, 1169773), (19, 1046639), (29, 685729), (187, 106343), (193, 103037), (209, 95149), (319, 62339), (323, 61567), (493, 40337), (551, 36091), (2123, 9367), (3281, 6061), (3553, 5597), (3667, 5423)]