21974591

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1307}}^1$

素因数の和:1390

約数の個数: 16

約数和(自身を含む): 24862464

約数和(自身を除く): 2887873

約数列:

[1, 17, 23, 43, 391, 731, 989, 1307, 16813, 22219, 30061, 56201, 511037, 955417, 1292623, 21974591]

約数ペア:

[(1, 21974591), (17, 1292623), (23, 955417), (43, 511037), (391, 56201), (731, 30061), (989, 22219), (1307, 16813)]