128654589

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{1301}}^1$

素因数の和:1605

約数の個数: 32

約数和(自身を含む): 208486656

約数和(自身を除く): 79832067

約数列:

[1, 3, 7, 17, 21, 51, 119, 277, 357, 831, 1301, 1939, 3903, 4709, 5817, 9107, 14127, 22117, 27321, 32963, 66351, 98889, 154819, 360377, 464457, 1081131, 2522639, 6126409, 7567917, 18379227, 42884863, 128654589]

約数ペア:

[(1, 128654589), (3, 42884863), (7, 18379227), (17, 7567917), (21, 6126409), (51, 2522639), (119, 1081131), (277, 464457), (357, 360377), (831, 154819), (1301, 98889), (1939, 66351), (3903, 32963), (4709, 27321), (5817, 22117), (9107, 14127)]