21745159

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:426

約数の個数: 16

約数和(自身を含む): 23901696

約数和(自身を除く): 2156537

約数列:

[1, 17, 37, 181, 191, 629, 3077, 3247, 6697, 7067, 34571, 113849, 120139, 587707, 1279127, 21745159]

約数ペア:

[(1, 21745159), (17, 1279127), (37, 587707), (181, 120139), (191, 113849), (629, 34571), (3077, 7067), (3247, 6697)]