21119192

素因数分解:

$2^3\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 42539640

約数和(自身を除く): 21420448

約数列:

[1, 2, 4, 8, 29, 43, 58, 73, 86, 116, 146, 172, 232, 292, 344, 584, 841, 1247, 1682, 2117, 2494, 3139, 3364, 4234, 4988, 6278, 6728, 8468, 9976, 12556, 16936, 25112, 36163, 61393, 72326, 91031, 122786, 144652, 182062, 245572, 289304, 364124, 491144, 728248, 2639899, 5279798, 10559596, 21119192]

約数ペア:

[(1, 21119192), (2, 10559596), (4, 5279798), (8, 2639899), (29, 728248), (43, 491144), (58, 364124), (73, 289304), (86, 245572), (116, 182062), (146, 144652), (172, 122786), (232, 91031), (292, 72326), (344, 61393), (584, 36163), (841, 25112), (1247, 16936), (1682, 12556), (2117, 9976), (2494, 8468), (3139, 6728), (3364, 6278), (4234, 4988)]