18772784

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:537

約数の個数: 40

約数和(自身を含む): 38330880

約数和(自身を除く): 19558096

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 139, 184, 278, 367, 368, 556, 734, 1112, 1468, 2224, 2936, 3197, 5872, 6394, 8441, 12788, 16882, 25576, 33764, 51013, 51152, 67528, 102026, 135056, 204052, 408104, 816208, 1173299, 2346598, 4693196, 9386392, 18772784]

約数ペア:

[(1, 18772784), (2, 9386392), (4, 4693196), (8, 2346598), (16, 1173299), (23, 816208), (46, 408104), (92, 204052), (139, 135056), (184, 102026), (278, 67528), (367, 51152), (368, 51013), (556, 33764), (734, 25576), (1112, 16882), (1468, 12788), (2224, 8441), (2936, 6394), (3197, 5872)]