428238

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:688

約数の個数: 24

約数和(自身を含む): 954408

約数和(自身を除く): 526170

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 643, 666, 1286, 1929, 3858, 5787, 11574, 23791, 47582, 71373, 142746, 214119, 428238]

約数ペア:

[(1, 428238), (2, 214119), (3, 142746), (6, 71373), (9, 47582), (18, 23791), (37, 11574), (74, 5787), (111, 3858), (222, 1929), (333, 1286), (643, 666)]