18806739

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{4127}}^1$

素因数の和:4175

約数の個数: 24

約数和(自身を含む): 30117888

約数和(自身を除く): 11311149

約数列:

[1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4127, 4557, 12381, 28889, 86667, 127937, 202223, 383811, 606669, 895559, 2686677, 6268913, 18806739]

約数ペア:

[(1, 18806739), (3, 6268913), (7, 2686677), (21, 895559), (31, 606669), (49, 383811), (93, 202223), (147, 127937), (217, 86667), (651, 28889), (1519, 12381), (4127, 4557)]