28726719

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1201}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 47079936

約数和(自身を除く): 18353217

約数列:

[1, 3, 7, 17, 21, 51, 67, 119, 201, 357, 469, 1139, 1201, 1407, 3417, 3603, 7973, 8407, 20417, 23919, 25221, 61251, 80467, 142919, 241401, 428757, 563269, 1367939, 1689807, 4103817, 9575573, 28726719]

約数ペア:

[(1, 28726719), (3, 9575573), (7, 4103817), (17, 1689807), (21, 1367939), (51, 563269), (67, 428757), (119, 241401), (201, 142919), (357, 80467), (469, 61251), (1139, 25221), (1201, 23919), (1407, 20417), (3417, 8407), (3603, 7973)]