18738237

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{6709}}^1$

素因数の和:6745

約数の個数: 24

約数和(自身を含む): 30597600

約数和(自身を除く): 11859363

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 6709, 20127, 46963, 127471, 140889, 328741, 382413, 892297, 986223, 2676891, 6246079, 18738237]

約数ペア:

[(1, 18738237), (3, 6246079), (7, 2676891), (19, 986223), (21, 892297), (49, 382413), (57, 328741), (133, 140889), (147, 127471), (399, 46963), (931, 20127), (2793, 6709)]