18609136

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12781}}^1$

素因数の和:12809

約数の個数: 40

約数和(自身を含む): 44379104

約数和(自身を除く): 25769968

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12781, 25562, 51124, 89467, 102248, 166153, 178934, 204496, 332306, 357868, 664612, 715736, 1163071, 1329224, 1431472, 2326142, 2658448, 4652284, 9304568, 18609136]

約数ペア:

[(1, 18609136), (2, 9304568), (4, 4652284), (7, 2658448), (8, 2326142), (13, 1431472), (14, 1329224), (16, 1163071), (26, 715736), (28, 664612), (52, 357868), (56, 332306), (91, 204496), (104, 178934), (112, 166153), (182, 102248), (208, 89467), (364, 51124), (728, 25562), (1456, 12781)]