28378629

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 42120000

約数和(自身を除く): 13741371

約数列:

[1, 3, 9, 71, 89, 213, 267, 499, 639, 801, 1497, 4491, 6319, 18957, 35429, 44411, 56871, 106287, 133233, 318861, 399699, 3153181, 9459543, 28378629]

約数ペア:

[(1, 28378629), (3, 9459543), (9, 3153181), (71, 399699), (89, 318861), (213, 133233), (267, 106287), (499, 56871), (639, 44411), (801, 35429), (1497, 18957), (4491, 6319)]