18208988

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1523}}^1$

素因数の和:1602

約数の個数: 36

約数和(自身を含む): 37700712

約数和(自身を除く): 19491724

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1523, 1708, 2989, 3046, 5978, 6092, 10661, 11956, 21322, 42644, 74627, 92903, 149254, 185806, 298508, 371612, 650321, 1300642, 2601284, 4552247, 9104494, 18208988]

約数ペア:

[(1, 18208988), (2, 9104494), (4, 4552247), (7, 2601284), (14, 1300642), (28, 650321), (49, 371612), (61, 298508), (98, 185806), (122, 149254), (196, 92903), (244, 74627), (427, 42644), (854, 21322), (1523, 11956), (1708, 10661), (2989, 6092), (3046, 5978)]