21825661

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 28022400

約数和(自身を除く): 6196739

約数列:

[1, 11, 13, 19, 29, 143, 209, 247, 277, 319, 377, 551, 2717, 3047, 3601, 4147, 5263, 6061, 7163, 8033, 39611, 57893, 68419, 78793, 88363, 104429, 152627, 752609, 1148719, 1678897, 1984151, 21825661]

約数ペア:

[(1, 21825661), (11, 1984151), (13, 1678897), (19, 1148719), (29, 752609), (143, 152627), (209, 104429), (247, 88363), (277, 78793), (319, 68419), (377, 57893), (551, 39611), (2717, 8033), (3047, 7163), (3601, 6061), (4147, 5263)]