21612728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{142189}}^1$

素因数の和:142214

約数の個数: 16

約数和(自身を含む): 42657000

約数和(自身を除く): 21044272

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 142189, 284378, 568756, 1137512, 2701591, 5403182, 10806364, 21612728]

約数ペア:

[(1, 21612728), (2, 10806364), (4, 5403182), (8, 2701591), (19, 1137512), (38, 568756), (76, 284378), (152, 142189)]