18900664

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{739}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 37296000

約数和(自身を除く): 18395336

約数列:

[1, 2, 4, 8, 23, 46, 92, 139, 184, 278, 556, 739, 1112, 1478, 2956, 3197, 5912, 6394, 12788, 16997, 25576, 33994, 67988, 102721, 135976, 205442, 410884, 821768, 2362583, 4725166, 9450332, 18900664]

約数ペア:

[(1, 18900664), (2, 9450332), (4, 4725166), (8, 2362583), (23, 821768), (46, 410884), (92, 205442), (139, 135976), (184, 102721), (278, 67988), (556, 33994), (739, 25576), (1112, 16997), (1478, 12788), (2956, 6394), (3197, 5912)]