81589515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40897}}^1$

素因数の和:40931

約数の個数: 32

約数和(自身を含む): 157048320

約数和(自身を除く): 75458805

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 40897, 122691, 204485, 286279, 613455, 777043, 858837, 1431395, 2331129, 3885215, 4294185, 5439301, 11655645, 16317903, 27196505, 81589515]

約数ペア:

[(1, 81589515), (3, 27196505), (5, 16317903), (7, 11655645), (15, 5439301), (19, 4294185), (21, 3885215), (35, 2331129), (57, 1431395), (95, 858837), (105, 777043), (133, 613455), (285, 286279), (399, 204485), (665, 122691), (1995, 40897)]