40738551

素因数分解:

$3^1\times 7^2\times {\mathrm{431}}^1\times {\mathrm{643}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 63431424

約数和(自身を除く): 22692873

約数列:

[1, 3, 7, 21, 49, 147, 431, 643, 1293, 1929, 3017, 4501, 9051, 13503, 21119, 31507, 63357, 94521, 277133, 831399, 1939931, 5819793, 13579517, 40738551]

約数ペア:

[(1, 40738551), (3, 13579517), (7, 5819793), (21, 1939931), (49, 831399), (147, 277133), (431, 94521), (643, 63357), (1293, 31507), (1929, 21119), (3017, 13503), (4501, 9051)]