21151976

素因数分解:

$2^3\times {\mathrm{653}}^1\times {\mathrm{4049}}^1$

素因数の和:4708

約数の個数: 16

約数和(自身を含む): 39730500

約数和(自身を除く): 18578524

約数列:

[1, 2, 4, 8, 653, 1306, 2612, 4049, 5224, 8098, 16196, 32392, 2643997, 5287994, 10575988, 21151976]

約数ペア:

[(1, 21151976), (2, 10575988), (4, 5287994), (8, 2643997), (653, 32392), (1306, 16196), (2612, 8098), (4049, 5224)]