28287469

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2137}}^1$

素因数の和:2236

約数の個数: 16

約数和(自身を含む): 33934336

約数和(自身を除く): 5646867

約数列:

[1, 7, 31, 61, 217, 427, 1891, 2137, 13237, 14959, 66247, 130357, 463729, 912499, 4041067, 28287469]

約数ペア:

[(1, 28287469), (7, 4041067), (31, 912499), (61, 463729), (217, 130357), (427, 66247), (1891, 14959), (2137, 13237)]