18994864

素因数分解:

$2^4\times 7^1\times {\mathrm{181}}^1\times {\mathrm{937}}^1$

素因数の和:1133

約数の個数: 40

約数和(自身を含む): 42337568

約数和(自身を除く): 23342704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 181, 362, 724, 937, 1267, 1448, 1874, 2534, 2896, 3748, 5068, 6559, 7496, 10136, 13118, 14992, 20272, 26236, 52472, 104944, 169597, 339194, 678388, 1187179, 1356776, 2374358, 2713552, 4748716, 9497432, 18994864]

約数ペア:

[(1, 18994864), (2, 9497432), (4, 4748716), (7, 2713552), (8, 2374358), (14, 1356776), (16, 1187179), (28, 678388), (56, 339194), (112, 169597), (181, 104944), (362, 52472), (724, 26236), (937, 20272), (1267, 14992), (1448, 13118), (1874, 10136), (2534, 7496), (2896, 6559), (3748, 5068)]