21167019939

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{696719}}^1$

素因数の和:696795

約数の個数: 32

約数和(自身を含む): 32773708800

約数和(自身を除く): 11606688861

約数列:

[1, 3, 13, 19, 39, 41, 57, 123, 247, 533, 741, 779, 1599, 2337, 10127, 30381, 696719, 2090157, 9057347, 13237661, 27172041, 28565479, 39712983, 85696437, 172089593, 371351227, 516268779, 542744101, 1114053681, 1628232303, 7055673313, 21167019939]

約数ペア:

[(1, 21167019939), (3, 7055673313), (13, 1628232303), (19, 1114053681), (39, 542744101), (41, 516268779), (57, 371351227), (123, 172089593), (247, 85696437), (533, 39712983), (741, 28565479), (779, 27172041), (1599, 13237661), (2337, 9057347), (10127, 2090157), (30381, 696719)]