21272967

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{853}}^1$

素因数の和:1039

約数の個数: 24

約数和(自身を含む): 32773104

約数和(自身を除く): 11500137

約数列:

[1, 3, 9, 17, 51, 153, 163, 489, 853, 1467, 2559, 2771, 7677, 8313, 14501, 24939, 43503, 130509, 139039, 417117, 1251351, 2363663, 7090989, 21272967]

約数ペア:

[(1, 21272967), (3, 7090989), (9, 2363663), (17, 1251351), (51, 417117), (153, 139039), (163, 130509), (489, 43503), (853, 24939), (1467, 14501), (2559, 8313), (2771, 7677)]