81969855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6997}}^1$

素因数の和:7087

約数の個数: 32

約数和(自身を含む): 145110528

約数和(自身を除く): 63140673

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 2343, 3905, 6997, 11715, 20991, 34985, 76967, 104955, 230901, 384835, 496787, 1154505, 1490361, 2483935, 5464657, 7451805, 16393971, 27323285, 81969855]

約数ペア:

[(1, 81969855), (3, 27323285), (5, 16393971), (11, 7451805), (15, 5464657), (33, 2483935), (55, 1490361), (71, 1154505), (165, 496787), (213, 384835), (355, 230901), (781, 104955), (1065, 76967), (2343, 34985), (3905, 20991), (6997, 11715)]