19884368

素因数分解:

$2^4\times 7^1\times {\mathrm{177539}}^1$

素因数の和:177554

約数の個数: 20

約数和(自身を含む): 44029920

約数和(自身を除く): 24145552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 177539, 355078, 710156, 1242773, 1420312, 2485546, 2840624, 4971092, 9942184, 19884368]

約数ペア:

[(1, 19884368), (2, 9942184), (4, 4971092), (7, 2840624), (8, 2485546), (14, 1420312), (16, 1242773), (28, 710156), (56, 355078), (112, 177539)]