21586201

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:361

約数の個数: 24

約数和(自身を含む): 27195264

約数和(自身を除く): 5609063

約数列:

[1, 7, 13, 71, 91, 169, 257, 497, 923, 1183, 1799, 3341, 6461, 11999, 18247, 23387, 43433, 83993, 127729, 237211, 304031, 1660477, 3083743, 21586201]

約数ペア:

[(1, 21586201), (7, 3083743), (13, 1660477), (71, 304031), (91, 237211), (169, 127729), (257, 83993), (497, 43433), (923, 23387), (1183, 18247), (1799, 11999), (3341, 6461)]