18745936

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2477}}^1$

素因数の和:2539

約数の個数: 40

約数和(自身を含む): 40559904

約数和(自身を除く): 21813968

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2477, 3784, 4954, 7568, 9908, 19816, 27247, 39632, 54494, 106511, 108988, 213022, 217976, 426044, 435952, 852088, 1171621, 1704176, 2343242, 4686484, 9372968, 18745936]

約数ペア:

[(1, 18745936), (2, 9372968), (4, 4686484), (8, 2343242), (11, 1704176), (16, 1171621), (22, 852088), (43, 435952), (44, 426044), (86, 217976), (88, 213022), (172, 108988), (176, 106511), (344, 54494), (473, 39632), (688, 27247), (946, 19816), (1892, 9908), (2477, 7568), (3784, 4954)]