21066740242

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1\times {\mathrm{255919}}^1$

素因数の和:256521

約数の個数: 16

約数和(自身を含む): 32061657600

約数和(自身を除く): 10994917358

約数列:

[1, 2, 79, 158, 521, 1042, 41159, 82318, 255919, 511838, 20217601, 40435202, 133333799, 266667598, 10533370121, 21066740242]

約数ペア:

[(1, 21066740242), (2, 10533370121), (79, 266667598), (158, 133333799), (521, 40435202), (1042, 20217601), (41159, 511838), (82318, 255919)]