142390689

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{457}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 223885056

約数和(自身を除く): 81494367

約数列:

[1, 3, 7, 21, 37, 111, 259, 401, 457, 777, 1203, 1371, 2807, 3199, 8421, 9597, 14837, 16909, 44511, 50727, 103859, 118363, 183257, 311577, 355089, 549771, 1282799, 3848397, 6780509, 20341527, 47463563, 142390689]

約数ペア:

[(1, 142390689), (3, 47463563), (7, 20341527), (21, 6780509), (37, 3848397), (111, 1282799), (259, 549771), (401, 355089), (457, 311577), (777, 183257), (1203, 118363), (1371, 103859), (2807, 50727), (3199, 44511), (8421, 16909), (9597, 14837)]