213621808

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{325643}}^1$

素因数の和:325692

約数の個数: 20

約数和(自身を含む): 423988488

約数和(自身を除く): 210366680

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 325643, 651286, 1302572, 2605144, 5210288, 13351363, 26702726, 53405452, 106810904, 213621808]

約数ペア:

[(1, 213621808), (2, 106810904), (4, 53405452), (8, 26702726), (16, 13351363), (41, 5210288), (82, 2605144), (164, 1302572), (328, 651286), (656, 325643)]