21229142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13591}}^1$

素因数の和:13675

約数の個数: 16

約数和(自身を含む): 35230464

約数和(自身を除く): 14001322

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13591, 27182, 149501, 299002, 964961, 1929922, 10614571, 21229142]

約数ペア:

[(1, 21229142), (2, 10614571), (11, 1929922), (22, 964961), (71, 299002), (142, 149501), (781, 27182), (1562, 13591)]