39987129

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2063}}^1$

素因数の和:2157

約数の個数: 32

約数和(自身を含む): 66576384

約数和(自身を除く): 26589255

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1491, 2063, 2769, 6189, 6461, 14441, 19383, 26819, 43323, 80457, 146473, 187733, 439419, 563199, 1025311, 1904149, 3075933, 5712447, 13329043, 39987129]

約数ペア:

[(1, 39987129), (3, 13329043), (7, 5712447), (13, 3075933), (21, 1904149), (39, 1025311), (71, 563199), (91, 439419), (213, 187733), (273, 146473), (497, 80457), (923, 43323), (1491, 26819), (2063, 19383), (2769, 14441), (6189, 6461)]