217878864

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{648449}}^1$

素因数の和:648467

約数の個数: 40

約数和(自身を含む): 643262400

約数和(自身を除く): 425383536

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 648449, 1296898, 1945347, 2593796, 3890694, 4539143, 5187592, 7781388, 9078286, 10375184, 13617429, 15562776, 18156572, 27234858, 31125552, 36313144, 54469716, 72626288, 108939432, 217878864]

約数ペア:

[(1, 217878864), (2, 108939432), (3, 72626288), (4, 54469716), (6, 36313144), (7, 31125552), (8, 27234858), (12, 18156572), (14, 15562776), (16, 13617429), (21, 10375184), (24, 9078286), (28, 7781388), (42, 5187592), (48, 4539143), (56, 3890694), (84, 2593796), (112, 1945347), (168, 1296898), (336, 648449)]