18819165

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 31173120

約数和(自身を除く): 12353955

約数列:

[1, 3, 5, 15, 43, 129, 163, 179, 215, 489, 537, 645, 815, 895, 2445, 2685, 7009, 7697, 21027, 23091, 29177, 35045, 38485, 87531, 105135, 115455, 145885, 437655, 1254611, 3763833, 6273055, 18819165]

約数ペア:

[(1, 18819165), (3, 6273055), (5, 3763833), (15, 1254611), (43, 437655), (129, 145885), (163, 115455), (179, 105135), (215, 87531), (489, 38485), (537, 35045), (645, 29177), (815, 23091), (895, 21027), (2445, 7697), (2685, 7009)]