28908765

素因数分解:

$3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1087}}^1$

素因数の和:1298

約数の個数: 32

約数和(自身を含む): 51701760

約数和(自身を除く): 22792995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 197, 591, 985, 1087, 1773, 2955, 3261, 5319, 5435, 8865, 9783, 16305, 26595, 29349, 48915, 146745, 214139, 642417, 1070695, 1927251, 3212085, 5781753, 9636255, 28908765]

約数ペア:

[(1, 28908765), (3, 9636255), (5, 5781753), (9, 3212085), (15, 1927251), (27, 1070695), (45, 642417), (135, 214139), (197, 146745), (591, 48915), (985, 29349), (1087, 26595), (1773, 16305), (2955, 9783), (3261, 8865), (5319, 5435)]