18175864

素因数分解:

$2^3\times 7^2\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 40014000

約数和(自身を除く): 21838136

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 199, 233, 392, 398, 466, 796, 932, 1393, 1592, 1631, 1864, 2786, 3262, 5572, 6524, 9751, 11144, 11417, 13048, 19502, 22834, 39004, 45668, 46367, 78008, 91336, 92734, 185468, 324569, 370936, 649138, 1298276, 2271983, 2596552, 4543966, 9087932, 18175864]

約数ペア:

[(1, 18175864), (2, 9087932), (4, 4543966), (7, 2596552), (8, 2271983), (14, 1298276), (28, 649138), (49, 370936), (56, 324569), (98, 185468), (196, 92734), (199, 91336), (233, 78008), (392, 46367), (398, 45668), (466, 39004), (796, 22834), (932, 19502), (1393, 13048), (1592, 11417), (1631, 11144), (1864, 9751), (2786, 6524), (3262, 5572)]