18231931888

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{947}}^1\times {\mathrm{27983}}^1$

素因数の和:28981

約数の個数: 40

約数和(自身を含む): 36185326848

約数和(自身を除く): 17953394960

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 947, 1894, 3788, 7576, 15152, 27983, 40721, 55966, 81442, 111932, 162884, 223864, 325768, 447728, 651536, 1203269, 2406538, 4813076, 9626152, 19252304, 26499901, 52999802, 105999604, 211999208, 423998416, 1139495743, 2278991486, 4557982972, 9115965944, 18231931888]

約数ペア:

[(1, 18231931888), (2, 9115965944), (4, 4557982972), (8, 2278991486), (16, 1139495743), (43, 423998416), (86, 211999208), (172, 105999604), (344, 52999802), (688, 26499901), (947, 19252304), (1894, 9626152), (3788, 4813076), (7576, 2406538), (15152, 1203269), (27983, 651536), (40721, 447728), (55966, 325768), (81442, 223864), (111932, 162884)]