21097233

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 33281280

約数和(自身を除く): 12184047

約数列:

[1, 3, 9, 23, 27, 53, 69, 159, 207, 477, 621, 641, 1219, 1431, 1923, 3657, 5769, 10971, 14743, 17307, 32913, 33973, 44229, 101919, 132687, 305757, 398061, 781379, 917271, 2344137, 7032411, 21097233]

約数ペア:

[(1, 21097233), (3, 7032411), (9, 2344137), (23, 917271), (27, 781379), (53, 398061), (69, 305757), (159, 132687), (207, 101919), (477, 44229), (621, 33973), (641, 32913), (1219, 17307), (1431, 14743), (1923, 10971), (3657, 5769)]