206989618

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{23117}}^1$

素因数の和:23178

約数の個数: 24

約数和(自身を含む): 350515116

約数和(自身を除く): 143525498

約数列:

[1, 2, 11, 22, 37, 74, 121, 242, 407, 814, 4477, 8954, 23117, 46234, 254287, 508574, 855329, 1710658, 2797157, 5594314, 9408619, 18817238, 103494809, 206989618]

約数ペア:

[(1, 206989618), (2, 103494809), (11, 18817238), (22, 9408619), (37, 5594314), (74, 2797157), (121, 1710658), (242, 855329), (407, 508574), (814, 254287), (4477, 46234), (8954, 23117)]