21872488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1249}}^1$

素因数の和:1465

約数の個数: 32

約数和(自身を含む): 45000000

約数和(自身を除く): 23127512

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 199, 398, 796, 1249, 1592, 2189, 2498, 4378, 4996, 8756, 9992, 13739, 17512, 27478, 54956, 109912, 248551, 497102, 994204, 1988408, 2734061, 5468122, 10936244, 21872488]

約数ペア:

[(1, 21872488), (2, 10936244), (4, 5468122), (8, 2734061), (11, 1988408), (22, 994204), (44, 497102), (88, 248551), (199, 109912), (398, 54956), (796, 27478), (1249, 17512), (1592, 13739), (2189, 9992), (2498, 8756), (4378, 4996)]