21591377

素因数分解:

${\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 23784192

約数和(自身を除く): 2192815

約数列:

[1, 17, 47, 61, 443, 799, 1037, 2867, 7531, 20821, 27023, 48739, 353957, 459391, 1270081, 21591377]

約数ペア:

[(1, 21591377), (17, 1270081), (47, 459391), (61, 353957), (443, 48739), (799, 27023), (1037, 20821), (2867, 7531)]