21942905

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{547}}^1$

素因数の和:736

約数の個数: 16

約数和(自身を含む): 26987904

約数和(自身を除く): 5044999

約数列:

[1, 5, 71, 113, 355, 547, 565, 2735, 8023, 38837, 40115, 61811, 194185, 309055, 4388581, 21942905]

約数ペア:

[(1, 21942905), (5, 4388581), (71, 309055), (113, 194185), (355, 61811), (547, 40115), (565, 38837), (2735, 8023)]