207721111

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{1279}}^1$

素因数の和:1367

約数の個数: 18

約数和(自身を含む): 232600320

約数和(自身を除く): 24879209

約数列:

[1, 13, 31, 169, 403, 961, 1279, 5239, 12493, 16627, 39649, 162409, 216151, 515437, 1229119, 6700681, 15978547, 207721111]

約数ペア:

[(1, 207721111), (13, 15978547), (31, 6700681), (169, 1229119), (403, 515437), (961, 216151), (1279, 162409), (5239, 39649), (12493, 16627)]