18970147

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 24883200

約数和(自身を除く): 5913053

約数列:

[1, 7, 17, 23, 29, 119, 161, 203, 239, 391, 493, 667, 1673, 2737, 3451, 4063, 4669, 5497, 6931, 11339, 28441, 38479, 48517, 79373, 93449, 117827, 159413, 654143, 824789, 1115891, 2710021, 18970147]

約数ペア:

[(1, 18970147), (7, 2710021), (17, 1115891), (23, 824789), (29, 654143), (119, 159413), (161, 117827), (203, 93449), (239, 79373), (391, 48517), (493, 38479), (667, 28441), (1673, 11339), (2737, 6931), (3451, 5497), (4063, 4669)]