19786371

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 10626429

約数列:

[1, 3, 11, 23, 33, 69, 131, 199, 253, 393, 597, 759, 1441, 2189, 3013, 4323, 4577, 6567, 9039, 13731, 26069, 33143, 50347, 78207, 99429, 151041, 286759, 599587, 860277, 1798761, 6595457, 19786371]

約数ペア:

[(1, 19786371), (3, 6595457), (11, 1798761), (23, 860277), (33, 599587), (69, 286759), (131, 151041), (199, 99429), (253, 78207), (393, 50347), (597, 33143), (759, 26069), (1441, 13731), (2189, 9039), (3013, 6567), (4323, 4577)]