19981276

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{10651}}^1$

素因数の和:10729

約数の個数: 24

約数和(自身を含む): 40562816

約数和(自身を除く): 20581540

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 10651, 21302, 42604, 74557, 149114, 298228, 713617, 1427234, 2854468, 4995319, 9990638, 19981276]

約数ペア:

[(1, 19981276), (2, 9990638), (4, 4995319), (7, 2854468), (14, 1427234), (28, 713617), (67, 298228), (134, 149114), (268, 74557), (469, 42604), (938, 21302), (1876, 10651)]