18227872

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1019}}^1$

素因数の和:1085

約数の個数: 48

約数和(自身を含む): 39584160

約数和(自身を除く): 21356288

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1019, 1118, 1376, 2038, 2236, 4076, 4472, 8152, 8944, 13247, 16304, 17888, 26494, 32608, 43817, 52988, 87634, 105976, 175268, 211952, 350536, 423904, 569621, 701072, 1139242, 1402144, 2278484, 4556968, 9113936, 18227872]

約数ペア:

[(1, 18227872), (2, 9113936), (4, 4556968), (8, 2278484), (13, 1402144), (16, 1139242), (26, 701072), (32, 569621), (43, 423904), (52, 350536), (86, 211952), (104, 175268), (172, 105976), (208, 87634), (344, 52988), (416, 43817), (559, 32608), (688, 26494), (1019, 17888), (1118, 16304), (1376, 13247), (2038, 8944), (2236, 8152), (4076, 4472)]