31390209

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{947}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 47324160

約数和(自身を除く): 15933951

約数列:

[1, 3, 9, 29, 87, 127, 261, 381, 947, 1143, 2841, 3683, 8523, 11049, 27463, 33147, 82389, 120269, 247167, 360807, 1082421, 3487801, 10463403, 31390209]

約数ペア:

[(1, 31390209), (3, 10463403), (9, 3487801), (29, 1082421), (87, 360807), (127, 247167), (261, 120269), (381, 82389), (947, 33147), (1143, 27463), (2841, 11049), (3683, 8523)]