21170168

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155663}}^1$

素因数の和:155686

約数の個数: 16

約数和(自身を含む): 42029280

約数和(自身を除く): 20859112

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155663, 311326, 622652, 1245304, 2646271, 5292542, 10585084, 21170168]

約数ペア:

[(1, 21170168), (2, 10585084), (4, 5292542), (8, 2646271), (17, 1245304), (34, 622652), (68, 311326), (136, 155663)]