21424456

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39971}}^1$

素因数の和:40044

約数の個数: 16

約数和(自身を含む): 40771440

約数和(自身を除く): 19346984

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39971, 79942, 159884, 319768, 2678057, 5356114, 10712228, 21424456]

約数ペア:

[(1, 21424456), (2, 10712228), (4, 5356114), (8, 2678057), (67, 319768), (134, 159884), (268, 79942), (536, 39971)]