28418957

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 33214464

約数和(自身を除く): 4795507

約数列:

[1, 7, 71, 211, 271, 497, 1477, 1897, 14981, 19241, 57181, 104867, 134687, 400267, 4059851, 28418957]

約数ペア:

[(1, 28418957), (7, 4059851), (71, 400267), (211, 134687), (271, 104867), (497, 57181), (1477, 19241), (1897, 14981)]