21200116

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 44311680

約数和(自身を除く): 23111564

約数列:

[1, 2, 4, 7, 14, 28, 41, 59, 82, 118, 164, 236, 287, 313, 413, 574, 626, 826, 1148, 1252, 1652, 2191, 2419, 4382, 4838, 8764, 9676, 12833, 16933, 18467, 25666, 33866, 36934, 51332, 67732, 73868, 89831, 129269, 179662, 258538, 359324, 517076, 757147, 1514294, 3028588, 5300029, 10600058, 21200116]

約数ペア:

[(1, 21200116), (2, 10600058), (4, 5300029), (7, 3028588), (14, 1514294), (28, 757147), (41, 517076), (59, 359324), (82, 258538), (118, 179662), (164, 129269), (236, 89831), (287, 73868), (313, 67732), (413, 51332), (574, 36934), (626, 33866), (826, 25666), (1148, 18467), (1252, 16933), (1652, 12833), (2191, 9676), (2419, 8764), (4382, 4838)]