21279931203

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2153}}^1\times {\mathrm{4507}}^1$

素因数の和:6723

約数の個数: 32

約数和(自身を含む): 30762014976

約数和(自身を除く): 9482083773

約数列:

[1, 3, 17, 43, 51, 129, 731, 2153, 2193, 4507, 6459, 13521, 36601, 76619, 92579, 109803, 193801, 229857, 277737, 581403, 1573843, 3294617, 4721529, 9703571, 9883851, 29110713, 164960707, 417253553, 494882121, 1251760659, 7093310401, 21279931203]

約数ペア:

[(1, 21279931203), (3, 7093310401), (17, 1251760659), (43, 494882121), (51, 417253553), (129, 164960707), (731, 29110713), (2153, 9883851), (2193, 9703571), (4507, 4721529), (6459, 3294617), (13521, 1573843), (36601, 581403), (76619, 277737), (92579, 229857), (109803, 193801)]