21551738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43627}}^1$

素因数の和:43661

約数の個数: 16

約数和(自身を含む): 36647520

約数和(自身を除く): 15095782

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 43627, 87254, 567151, 828913, 1134302, 1657826, 10775869, 21551738]

約数ペア:

[(1, 21551738), (2, 10775869), (13, 1657826), (19, 1134302), (26, 828913), (38, 567151), (247, 87254), (494, 43627)]