21285055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{2237}}^1$

素因数の和:2426

約数の個数: 16

約数和(自身を含む): 28037664

約数和(自身を除く): 6752609

約数列:

[1, 5, 11, 55, 173, 865, 1903, 2237, 9515, 11185, 24607, 123035, 387001, 1935005, 4257011, 21285055]

約数ペア:

[(1, 21285055), (5, 4257011), (11, 1935005), (55, 387001), (173, 123035), (865, 24607), (1903, 11185), (2237, 9515)]