21306627

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{887}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 32831136

約数和(自身を除く): 11524509

約数列:

[1, 3, 9, 17, 51, 153, 157, 471, 887, 1413, 2661, 2669, 7983, 8007, 15079, 24021, 45237, 135711, 139259, 417777, 1253331, 2367403, 7102209, 21306627]

約数ペア:

[(1, 21306627), (3, 7102209), (9, 2367403), (17, 1253331), (51, 417777), (153, 139259), (157, 135711), (471, 45237), (887, 24021), (1413, 15079), (2661, 8007), (2669, 7983)]