28779394

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:814

約数の個数: 32

約数和(自身を含む): 51932160

約数和(自身を除く): 23152766

約数列:

[1, 2, 7, 14, 23, 46, 139, 161, 278, 322, 643, 973, 1286, 1946, 3197, 4501, 6394, 9002, 14789, 22379, 29578, 44758, 89377, 103523, 178754, 207046, 625639, 1251278, 2055671, 4111342, 14389697, 28779394]

約数ペア:

[(1, 28779394), (2, 14389697), (7, 4111342), (14, 2055671), (23, 1251278), (46, 625639), (139, 207046), (161, 178754), (278, 103523), (322, 89377), (643, 44758), (973, 29578), (1286, 22379), (1946, 14789), (3197, 9002), (4501, 6394)]