208616401

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 265697280

約数和(自身を除く): 57080879

約数列:

[1, 7, 17, 29, 61, 119, 203, 427, 493, 991, 1037, 1769, 3451, 6937, 7259, 12383, 16847, 28739, 30073, 60451, 117929, 201173, 210511, 423157, 488563, 1027667, 1753079, 3419941, 7193669, 12271553, 29802343, 208616401]

約数ペア:

[(1, 208616401), (7, 29802343), (17, 12271553), (29, 7193669), (61, 3419941), (119, 1753079), (203, 1027667), (427, 488563), (493, 423157), (991, 210511), (1037, 201173), (1769, 117929), (3451, 60451), (6937, 30073), (7259, 28739), (12383, 16847)]