128406957

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1\times {\mathrm{509}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 201519360

約数和(自身を除く): 73112403

約数列:

[1, 3, 7, 21, 41, 123, 287, 293, 509, 861, 879, 1527, 2051, 3563, 6153, 10689, 12013, 20869, 36039, 62607, 84091, 146083, 149137, 252273, 438249, 447411, 1043959, 3131877, 6114617, 18343851, 42802319, 128406957]

約数ペア:

[(1, 128406957), (3, 42802319), (7, 18343851), (21, 6114617), (41, 3131877), (123, 1043959), (287, 447411), (293, 438249), (509, 252273), (861, 149137), (879, 146083), (1527, 84091), (2051, 62607), (3563, 36039), (6153, 20869), (10689, 12013)]