21768678

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{7703}}^1$

素因数の和:7868

約数の個数: 24

約数和(自身を含む): 47472048

約数和(自身を除く): 25703370

約数列:

[1, 2, 3, 6, 9, 18, 157, 314, 471, 942, 1413, 2826, 7703, 15406, 23109, 46218, 69327, 138654, 1209371, 2418742, 3628113, 7256226, 10884339, 21768678]

約数ペア:

[(1, 21768678), (2, 10884339), (3, 7256226), (6, 3628113), (9, 2418742), (18, 1209371), (157, 138654), (314, 69327), (471, 46218), (942, 23109), (1413, 15406), (2826, 7703)]