21730216

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6947}}^1$

素因数の和:6993

約数の個数: 32

約数和(自身を含む): 45023040

約数和(自身を除く): 23292824

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 782, 1564, 3128, 6947, 13894, 27788, 55576, 118099, 159781, 236198, 319562, 472396, 639124, 944792, 1278248, 2716277, 5432554, 10865108, 21730216]

約数ペア:

[(1, 21730216), (2, 10865108), (4, 5432554), (8, 2716277), (17, 1278248), (23, 944792), (34, 639124), (46, 472396), (68, 319562), (92, 236198), (136, 159781), (184, 118099), (391, 55576), (782, 27788), (1564, 13894), (3128, 6947)]